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Finding the Fourth Proportional to 425,471.31, 587,147.49 and 234,484.83

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Solution

The fourth proportional to 425,471.31, 587,147.49 and 234,484.83 is: 323,587.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,471.31 : 587,147.49 = 234,484.83 : x
  2. Step 2: Convert to fraction form
    425,471.31/587,147.49 = 234,484.83/x
  3. Step 3: Cross multiply
    425,471.31x = 587,147.49 × 234,484.83
  4. Step 4: Simplify right side
    425,471.31x = 137,677,179,377.58
  5. Step 5: Solve for x
    x = 137,677,179,377.58/425,471.31
  6. Step 6: Final answer
    x = 323,587.46

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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.