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Finding the Fourth Proportional to 323,532.20, 485,211.90 and 98,892.20

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Solution

The fourth proportional to 323,532.20, 485,211.90 and 98,892.20 is: 148,311.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,532.20 : 485,211.90 = 98,892.20 : x
  2. Step 2: Convert to fraction form
    323,532.20/485,211.90 = 98,892.20/x
  3. Step 3: Cross multiply
    323,532.20x = 485,211.90 × 98,892.20
  4. Step 4: Simplify right side
    323,532.20x = 47,983,672,257.18
  5. Step 5: Solve for x
    x = 47,983,672,257.18/323,532.20
  6. Step 6: Final answer
    x = 148,311.89

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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.