Not so quick: One inch may be 1/12 of a foot, but a foot is not necessarily a foot. The international foot is 12×2.54 mm, but a US survey foot is 1200/3937 m. The ratio of the definitions is 500000/499999.
But nobody would ever use a survey foot outside of surveying, and if you are using survey foot outside of talking to other surveyors you would call it a survey foot, or be using it in a context where that tiny inconsistency doesn't matter. Something being 5 feet away in feet is still for all practical purposes 5 survey feet away, nobody is going to pull out a 5 foot set of calipers to measure that 1/100,000th of a foot difference. And nobody would use survey feet for anything that requires that sort of precision.
You might as well complain about meter measurements from 100 years ago not being exactly the same as a modern meter.
Not complaining really. I mentioned this mostly for entertainment value, besides pointing out that things are not always as straightforward as it might seem. (Also triggered by the absurd precision of the number in the title.)
