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Finding the Fourth Proportional to 591,753.72, 887,630.54 and 491,985.48

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Solution

The fourth proportional to 591,753.72, 887,630.54 and 491,985.48 is: 737,978.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,753.72 : 887,630.54 = 491,985.48 : x
  2. Step 2: Convert to fraction form
    591,753.72/887,630.54 = 491,985.48/x
  3. Step 3: Cross multiply
    591,753.72x = 887,630.54 × 491,985.48
  4. Step 4: Simplify right side
    591,753.72x = 436,701,331,616.44
  5. Step 5: Solve for x
    x = 436,701,331,616.44/591,753.72
  6. Step 6: Final answer
    x = 737,978.18

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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.