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Finding the Fourth Proportional to 366,691.38, 506,063.26 and 215,817.54

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Solution

The fourth proportional to 366,691.38, 506,063.26 and 215,817.54 is: 297,845.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,691.38 : 506,063.26 = 215,817.54 : x
  2. Step 2: Convert to fraction form
    366,691.38/506,063.26 = 215,817.54/x
  3. Step 3: Cross multiply
    366,691.38x = 506,063.26 × 215,817.54
  4. Step 4: Simplify right side
    366,691.38x = 109,217,327,857.58
  5. Step 5: Solve for x
    x = 109,217,327,857.58/366,691.38
  6. Step 6: Final answer
    x = 297,845.36

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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.