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Finding the Fourth Proportional to 714,847.35, 986,489.32 and 392,562.82

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Solution

The fourth proportional to 714,847.35, 986,489.32 and 392,562.82 is: 541,736.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,847.35 : 986,489.32 = 392,562.82 : x
  2. Step 2: Convert to fraction form
    714,847.35/986,489.32 = 392,562.82/x
  3. Step 3: Cross multiply
    714,847.35x = 986,489.32 × 392,562.82
  4. Step 4: Simplify right side
    714,847.35x = 387,259,029,359.08
  5. Step 5: Solve for x
    x = 387,259,029,359.08/714,847.35
  6. Step 6: Final answer
    x = 541,736.68

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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.