To measure the distance between two points, a theodolite mounted on a tripod was placed at the first point of the line and a telescopic fiberglass leveling rod was place at the other point. If the reading on the rod corresponding to the upper stadia hair is ${6\mathrm{.}44}^{\text{'}}$ and the reading on the rod corresponding to the lower stadia hair is ${3\mathrm{.}22}^{\text{'}},$ calculate the distance. The theodolite lens constant is $100.$

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