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Finding the Fourth Proportional to 616,660.80, 924,991.20 and 582,446.40

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Solution

The fourth proportional to 616,660.80, 924,991.20 and 582,446.40 is: 873,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,660.80 : 924,991.20 = 582,446.40 : x
  2. Step 2: Convert to fraction form
    616,660.80/924,991.20 = 582,446.40/x
  3. Step 3: Cross multiply
    616,660.80x = 924,991.20 × 582,446.40
  4. Step 4: Simplify right side
    616,660.80x = 538,757,794,471.68
  5. Step 5: Solve for x
    x = 538,757,794,471.68/616,660.80
  6. Step 6: Final answer
    x = 873,669.60

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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.