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Finding the Third Proportional to 396,162 and 853,926

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Solution

The third proportional to 396,162 and 853,926 is: 1,840,634.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,162 : 853,926 = 853,926 : x
  2. Step 2: Convert to fraction form
    396,162/853,926 = 853,926/x
  3. Step 3: Cross multiply
    396,162x = 853,926 × 853,926
  4. Step 4: Simplify right side
    396,162x = 729,189,613,476
  5. Step 5: Solve for x
    x = 729,189,613,476/396,162
  6. Step 6: Final answer
    x = 1,840,634.93

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.