These values are as right as setting least significant digits to 0 would be. The sensor has limited precision and the other digits might as well be 0 or 584985948 and the value would be no more precise.
They're like the physical-world equivalent of a URL; I don't honestly care if there's an unused query string parameter tacked onto the end of it or if it redirects to https or something; all I care about is that the link I clicked on gets me to the correct cat video.