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Finding the Fourth Proportional to 396,279.43, 594,652.43 and 147,136.39

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Solution

The fourth proportional to 396,279.43, 594,652.43 and 147,136.39 is: 220,791.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,279.43 : 594,652.43 = 147,136.39 : x
  2. Step 2: Convert to fraction form
    396,279.43/594,652.43 = 147,136.39/x
  3. Step 3: Cross multiply
    396,279.43x = 594,652.43 × 147,136.39
  4. Step 4: Simplify right side
    396,279.43x = 87,495,011,854.93
  5. Step 5: Solve for x
    x = 87,495,011,854.93/396,279.43
  6. Step 6: Final answer
    x = 220,791.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.