During the "October 1st" golden week, Huang Peng's family planned to travel to Huidong. On a map with a scale of 1:5,000,000, the distance between Dongguan and Huidong was measured to be 4 cm. What is the actual distance between the two places?
在"十•一"黄金周，黄鹏全家准备去惠东旅游，在比例尺为1：5000000的地图上，量得东莞到惠东的距离是4厘米．两地的实际距离是多少．
<gadget id="calculator">1 / 5_000_000</gadget>
<output>1/5_000_000 = around 0</output>

<gadget id="calculator">4 / (1/5_000_000) / 100_000</gadget>
<output>200</output>

<result>200</result>