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Finding the Fourth Proportional to 426,429.53, 588,468.78 and 235,444.28

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Solution

The fourth proportional to 426,429.53, 588,468.78 and 235,444.28 is: 324,910.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,429.53 : 588,468.78 = 235,444.28 : x
  2. Step 2: Convert to fraction form
    426,429.53/588,468.78 = 235,444.28/x
  3. Step 3: Cross multiply
    426,429.53x = 588,468.78 × 235,444.28
  4. Step 4: Simplify right side
    426,429.53x = 138,551,608,209.58
  5. Step 5: Solve for x
    x = 138,551,608,209.58/426,429.53
  6. Step 6: Final answer
    x = 324,910.91

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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.