In a map with a scale of 1:5000000, the distance of 5cm on the map is equivalent to the actual distance on the ground in kilometers
在比例尺是1：5000000的地图中，图上5cm的距离相当于地面上的实际距离是多少km
<gadget id="calculator">1 / 5_000_000</gadget>
<output>1/5_000_000 = around 0</output>

<gadget id="calculator">5 / (1/5_000_000) / 100_000</gadget>
<output>250</output>

<result>250</result>