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Finding the Fourth Proportional to 961,776, 1,327,289.96 and 532,048.72

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Solution

The fourth proportional to 961,776, 1,327,289.96 and 532,048.72 is: 734,248.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,776 : 1,327,289.96 = 532,048.72 : x
  2. Step 2: Convert to fraction form
    961,776/1,327,289.96 = 532,048.72/x
  3. Step 3: Cross multiply
    961,776x = 1,327,289.96 × 532,048.72
  4. Step 4: Simplify right side
    961,776x = 706,182,924,286.85
  5. Step 5: Solve for x
    x = 706,182,924,286.85/961,776
  6. Step 6: Final answer
    x = 734,248.85

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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.