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Finding the Fourth Proportional to 325,534.28, 488,843.30 and 219,600.05

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Solution

The fourth proportional to 325,534.28, 488,843.30 and 219,600.05 is: 329,765.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,534.28 : 488,843.30 = 219,600.05 : x
  2. Step 2: Convert to fraction form
    325,534.28/488,843.30 = 219,600.05/x
  3. Step 3: Cross multiply
    325,534.28x = 488,843.30 × 219,600.05
  4. Step 4: Simplify right side
    325,534.28x = 107,350,011,226.95
  5. Step 5: Solve for x
    x = 107,350,011,226.95/325,534.28
  6. Step 6: Final answer
    x = 329,765.62

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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.