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Finding the Fourth Proportional to 481,027.60, 721,800.60 and 200,573.20

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Solution

The fourth proportional to 481,027.60, 721,800.60 and 200,573.20 is: 300,967.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,027.60 : 721,800.60 = 200,573.20 : x
  2. Step 2: Convert to fraction form
    481,027.60/721,800.60 = 200,573.20/x
  3. Step 3: Cross multiply
    481,027.60x = 721,800.60 × 200,573.20
  4. Step 4: Simplify right side
    481,027.60x = 144,773,856,103.92
  5. Step 5: Solve for x
    x = 144,773,856,103.92/481,027.60
  6. Step 6: Final answer
    x = 300,967.88

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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.