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Finding the Fourth Proportional to 425,637.18, 587,383.85 and 234,657.41

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Solution

The fourth proportional to 425,637.18, 587,383.85 and 234,657.41 is: 323,829.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,637.18 : 587,383.85 = 234,657.41 : x
  2. Step 2: Convert to fraction form
    425,637.18/587,383.85 = 234,657.41/x
  3. Step 3: Cross multiply
    425,637.18x = 587,383.85 × 234,657.41
  4. Step 4: Simplify right side
    425,637.18x = 137,833,970,566.55
  5. Step 5: Solve for x
    x = 137,833,970,566.55/425,637.18
  6. Step 6: Final answer
    x = 323,829.72

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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.