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Finding the Fourth Proportional to 331,569.64, 497,354.46 and 82,251.64

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Solution

The fourth proportional to 331,569.64, 497,354.46 and 82,251.64 is: 123,377.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,569.64 : 497,354.46 = 82,251.64 : x
  2. Step 2: Convert to fraction form
    331,569.64/497,354.46 = 82,251.64/x
  3. Step 3: Cross multiply
    331,569.64x = 497,354.46 × 82,251.64
  4. Step 4: Simplify right side
    331,569.64x = 40,908,219,996.31
  5. Step 5: Solve for x
    x = 40,908,219,996.31/331,569.64
  6. Step 6: Final answer
    x = 123,377.46

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.