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Finding the Fourth Proportional to 348,462.20, 523,082.10 and 325,620.20

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Solution

The fourth proportional to 348,462.20, 523,082.10 and 325,620.20 is: 488,793.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,462.20 : 523,082.10 = 325,620.20 : x
  2. Step 2: Convert to fraction form
    348,462.20/523,082.10 = 325,620.20/x
  3. Step 3: Cross multiply
    348,462.20x = 523,082.10 × 325,620.20
  4. Step 4: Simplify right side
    348,462.20x = 170,326,098,018.42
  5. Step 5: Solve for x
    x = 170,326,098,018.42/348,462.20
  6. Step 6: Final answer
    x = 488,793.61

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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.