On a map with a scale of (1/1000000), how many kilometers does a line segment 5 cm long actually represent?
在比例尺为(1/1000000)的地图上，5厘米长的线段实际表示多少千米
<gadget id="calculator">1 / 1_000_000</gadget>
<output>1/1_000_000 = around 0.000001</output>

<gadget id="calculator">5 / (1/1_000_000) / 100_000</gadget>
<output>50</output>

<result>50</result>