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Finding the Fourth Proportional to 425,616.38, 587,354.54 and 234,636.60

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Solution

The fourth proportional to 425,616.38, 587,354.54 and 234,636.60 is: 323,800.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,616.38 : 587,354.54 = 234,636.60 : x
  2. Step 2: Convert to fraction form
    425,616.38/587,354.54 = 234,636.60/x
  3. Step 3: Cross multiply
    425,616.38x = 587,354.54 × 234,636.60
  4. Step 4: Simplify right side
    425,616.38x = 137,814,872,260.16
  5. Step 5: Solve for x
    x = 137,814,872,260.16/425,616.38
  6. Step 6: Final answer
    x = 323,800.68

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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.