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Finding the Fourth Proportional to 959,761, 1,324,470.18 and 557,378.92

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Solution

The fourth proportional to 959,761, 1,324,470.18 and 557,378.92 is: 769,182.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,761 : 1,324,470.18 = 557,378.92 : x
  2. Step 2: Convert to fraction form
    959,761/1,324,470.18 = 557,378.92/x
  3. Step 3: Cross multiply
    959,761x = 1,324,470.18 × 557,378.92
  4. Step 4: Simplify right side
    959,761x = 738,231,758,500.61
  5. Step 5: Solve for x
    x = 738,231,758,500.61/959,761
  6. Step 6: Final answer
    x = 769,182.91

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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.