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Finding the Fourth Proportional to 481,414.28, 722,367.30 and 321,599.48

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Solution

The fourth proportional to 481,414.28, 722,367.30 and 321,599.48 is: 482,563.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,414.28 : 722,367.30 = 321,599.48 : x
  2. Step 2: Convert to fraction form
    481,414.28/722,367.30 = 321,599.48/x
  3. Step 3: Cross multiply
    481,414.28x = 722,367.30 × 321,599.48
  4. Step 4: Simplify right side
    481,414.28x = 232,312,948,049.00
  5. Step 5: Solve for x
    x = 232,312,948,049.00/481,414.28
  6. Step 6: Final answer
    x = 482,563.48

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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.