On a 1:3,000,000 map, the distance from Putian to Xiamen is 5.5 centimeters. What is the actual distance from Putian to Xiamen in kilometers?
在一副1：3000000的地图上，量得莆田到厦门的距离是5.5厘米，莆田到厦门的实际距离是多少千米．
<gadget id="calculator">1 / 3_000_000</gadget>
<output>1/3_000_000 = around 0</output>

<gadget id="calculator">5.5 / (1/3_000_000) / 100_000</gadget>
<output>165</output>

<result>165</result>