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Finding the Fourth Proportional to 425,442.80, 587,108.28 and 234,456.32

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Solution

The fourth proportional to 425,442.80, 587,108.28 and 234,456.32 is: 323,548.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,442.80 : 587,108.28 = 234,456.32 : x
  2. Step 2: Convert to fraction form
    425,442.80/587,108.28 = 234,456.32/x
  3. Step 3: Cross multiply
    425,442.80x = 587,108.28 × 234,456.32
  4. Step 4: Simplify right side
    425,442.80x = 137,651,246,770.33
  5. Step 5: Solve for x
    x = 137,651,246,770.33/425,442.80
  6. Step 6: Final answer
    x = 323,548.19

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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.