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Finding the Fourth Proportional to 439,524.54, 655,591.95 and 399,162.24

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Solution

The fourth proportional to 439,524.54, 655,591.95 and 399,162.24 is: 595,387.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,524.54 : 655,591.95 = 399,162.24 : x
  2. Step 2: Convert to fraction form
    439,524.54/655,591.95 = 399,162.24/x
  3. Step 3: Cross multiply
    439,524.54x = 655,591.95 × 399,162.24
  4. Step 4: Simplify right side
    439,524.54x = 261,687,551,287.97
  5. Step 5: Solve for x
    x = 261,687,551,287.97/439,524.54
  6. Step 6: Final answer
    x = 595,387.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.