ratio estimation

例句：

1. 1. To calculate the ratio of ingredients in a recipe, you need to measure each ingredient accurately.
   为了计算食谱中成分的比例，你需要准确测量每种成分。
2. 2.The company's financial ratio is considered healthy, but it needs further improvement.
   公司的财务比率被认为是健康的，但需要进一步改善。
3. 3.The ratio of males to females in the population is about 50:50.
   人口中男性与女性的比例大约是50:50。