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Finding the Fourth Proportional to 425,631.68, 587,375.52 and 234,651.80

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Solution

The fourth proportional to 425,631.68, 587,375.52 and 234,651.80 is: 323,821.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,631.68 : 587,375.52 = 234,651.80 : x
  2. Step 2: Convert to fraction form
    425,631.68/587,375.52 = 234,651.80/x
  3. Step 3: Cross multiply
    425,631.68x = 587,375.52 × 234,651.80
  4. Step 4: Simplify right side
    425,631.68x = 137,828,723,043.94
  5. Step 5: Solve for x
    x = 137,828,723,043.94/425,631.68
  6. Step 6: Final answer
    x = 323,821.58

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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.