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Finding the Fourth Proportional to 435,591.36, 656,619.03 and 397,753.92

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Solution

The fourth proportional to 435,591.36, 656,619.03 and 397,753.92 is: 599,582.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,591.36 : 656,619.03 = 397,753.92 : x
  2. Step 2: Convert to fraction form
    435,591.36/656,619.03 = 397,753.92/x
  3. Step 3: Cross multiply
    435,591.36x = 656,619.03 × 397,753.92
  4. Step 4: Simplify right side
    435,591.36x = 261,172,793,129.10
  5. Step 5: Solve for x
    x = 261,172,793,129.10/435,591.36
  6. Step 6: Final answer
    x = 599,582.12

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.