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Finding the Fourth Proportional to 574,503.12, 861,354.96 and 254,481.24

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Solution

The fourth proportional to 574,503.12, 861,354.96 and 254,481.24 is: 381,544.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,503.12 : 861,354.96 = 254,481.24 : x
  2. Step 2: Convert to fraction form
    574,503.12/861,354.96 = 254,481.24/x
  3. Step 3: Cross multiply
    574,503.12x = 861,354.96 × 254,481.24
  4. Step 4: Simplify right side
    574,503.12x = 219,198,678,300.95
  5. Step 5: Solve for x
    x = 219,198,678,300.95/574,503.12
  6. Step 6: Final answer
    x = 381,544.80

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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.