The distance between the two places on the map is 5 cm, and the scale is 1:10000000. What is the actual distance in kilometers between the two places?
两地在地图上的距离是5厘米，比例尺是1：10000000，则两地的实际距离是多少千米．
<gadget id="calculator">1 / 10_000_000</gadget>
<output>1/10_000_000 = around 0</output>

<gadget id="calculator">5 / (1/10_000_000) / 100_000</gadget>
<output>500</output>

<result>500</result>