五倍

例句：

1. 1. Theprice of the product has increased by fivefold in the past year.
   该产品的价格在过去一年里翻了一番。
2. 2. The company'sprofits have increased by fivefold since itsinception.
   自公司成立以来，利润已经翻了五倍。
3. 3. Thepopulation of the city hasgrown by fivefold in thelast decade.
   过去十年里，该城市的人口增长了五倍。