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Finding the Fourth Proportional to 481,047.60, 721,830.60 and 200,593.20

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Solution

The fourth proportional to 481,047.60, 721,830.60 and 200,593.20 is: 300,997.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,047.60 : 721,830.60 = 200,593.20 : x
  2. Step 2: Convert to fraction form
    481,047.60/721,830.60 = 200,593.20/x
  3. Step 3: Cross multiply
    481,047.60x = 721,830.60 × 200,593.20
  4. Step 4: Simplify right side
    481,047.60x = 144,794,309,911.92
  5. Step 5: Solve for x
    x = 144,794,309,911.92/481,047.60
  6. Step 6: Final answer
    x = 300,997.88

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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.