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Finding the Fourth Proportional to 425,617.61, 587,356.20 and 234,637.83

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Solution

The fourth proportional to 425,617.61, 587,356.20 and 234,637.83 is: 323,802.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,617.61 : 587,356.20 = 234,637.83 : x
  2. Step 2: Convert to fraction form
    425,617.61/587,356.20 = 234,637.83/x
  3. Step 3: Cross multiply
    425,617.61x = 587,356.20 × 234,637.83
  4. Step 4: Simplify right side
    425,617.61x = 137,815,984,205.05
  5. Step 5: Solve for x
    x = 137,815,984,205.05/425,617.61
  6. Step 6: Final answer
    x = 323,802.36

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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.