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Finding the Fourth Proportional to 574,556.49, 861,802.32 and 254,616.21

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Solution

The fourth proportional to 574,556.49, 861,802.32 and 254,616.21 is: 381,909.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,556.49 : 861,802.32 = 254,616.21 : x
  2. Step 2: Convert to fraction form
    574,556.49/861,802.32 = 254,616.21/x
  3. Step 3: Cross multiply
    574,556.49x = 861,802.32 × 254,616.21
  4. Step 4: Simplify right side
    574,556.49x = 219,428,840,487.61
  5. Step 5: Solve for x
    x = 219,428,840,487.61/574,556.49
  6. Step 6: Final answer
    x = 381,909.95

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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.