On a map with a scale of 1/500,000, the distance between the two places is 8 centimeters. If the actual distance it shows is drawn on a map of 1:4,000,000, how long should it be?
在比例尺是五十万分之一的地图上，量得两地间的距离是8厘米，如果将它表演的实际距离画在1：4000000的地图上，应画多长？
<gadget id="calculator">1 / 500_000</gadget>
<output>1/500_000 = around 0.000002</output>

<gadget id="calculator">8 / (1/500_000)</gadget>
<output>4_000_000</output>

<gadget id="calculator">1 / 4_000_000</gadget>
<output>1/4_000_000 = around 0</output>

<gadget id="calculator">4_000_000 * (1/4_000_000)</gadget>
<output>1</output>

<result>1</result>