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Finding the Fourth Proportional to 425,455.53, 587,128.64 and 234,468.92

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Solution

The fourth proportional to 425,455.53, 587,128.64 and 234,468.92 is: 323,567.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,455.53 : 587,128.64 = 234,468.92 : x
  2. Step 2: Convert to fraction form
    425,455.53/587,128.64 = 234,468.92/x
  3. Step 3: Cross multiply
    425,455.53x = 587,128.64 × 234,468.92
  4. Step 4: Simplify right side
    425,455.53x = 137,663,418,121.87
  5. Step 5: Solve for x
    x = 137,663,418,121.87/425,455.53
  6. Step 6: Final answer
    x = 323,567.11

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1.5x scale

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.