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Finding the Fourth Proportional to 396,373.38, 546,839.55 and 226,516.38

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Solution

The fourth proportional to 396,373.38, 546,839.55 and 226,516.38 is: 312,503.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,373.38 : 546,839.55 = 226,516.38 : x
  2. Step 2: Convert to fraction form
    396,373.38/546,839.55 = 226,516.38/x
  3. Step 3: Cross multiply
    396,373.38x = 546,839.55 × 226,516.38
  4. Step 4: Simplify right side
    396,373.38x = 123,868,115,306.83
  5. Step 5: Solve for x
    x = 123,868,115,306.83/396,373.38
  6. Step 6: Final answer
    x = 312,503.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.