On a Chinese map with a scale of 1:5,000,000, the distance from Shanghai to Hangzhou is 3.4 centimeters. How many kilometers is the actual distance from Shanghai to Hangzhou? How many hours does it take for a passenger car to drive from Shanghai to Hangzhou at a speed of 100 kilometers per hour?
在比例尺是1：5000000的中国地图上，量得上海到杭州的距离是3.4厘米，上海到杭州的实际距离是多少千米？一辆客车以每小时100千米的速度从上海开往杭州，需要几小时？
<gadget id="calculator">1 / 5_000_000</gadget>
<output>1/5_000_000 = around 0</output>

<gadget id="calculator">3.4 / (1/5_000_000) / 100_000 / 100</gadget>
<output>1.7</output>

<result>1.7</result>