The actual distance between Kunming and Xishuangbanna is 1,200 kilometers, and the distance between the two places is 6 centimeters measured on a map. On this map, the distance from Luxi to Lijiang is 4 cm. What is the actual distance in kilometers from Luxi to Lijiang?
昆明到西双版纳的实际距离是1200千米，在一幅地图上量得两地之间的距离是6厘米．在这幅地图上量得泸西到丽江的图上距离是4厘米．泸西到丽江的实际距离是多少千米．
<gadget id="calculator">1_200 * 100_000</gadget>
<output>120_000_000</output>

<gadget id="calculator">6 / 120_000_000</gadget>
<output>1/20_000_000 = around 0</output>

<gadget id="calculator">4 / (1/20_000_000) / 100_000</gadget>
<output>800</output>

<result>800</result>