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Finding the Fourth Proportional to 425,367.87, 587,033.88 and 234,381.21

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Solution

The fourth proportional to 425,367.87, 587,033.88 and 234,381.21 is: 323,460.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,367.87 : 587,033.88 = 234,381.21 : x
  2. Step 2: Convert to fraction form
    425,367.87/587,033.88 = 234,381.21/x
  3. Step 3: Cross multiply
    425,367.87x = 587,033.88 × 234,381.21
  4. Step 4: Simplify right side
    425,367.87x = 137,589,711,105.40
  5. Step 5: Solve for x
    x = 137,589,711,105.40/425,367.87
  6. Step 6: Final answer
    x = 323,460.52

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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.