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Finding the Fourth Proportional to 481,859.28, 722,215.44 and 363,139.20

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Solution

The fourth proportional to 481,859.28, 722,215.44 and 363,139.20 is: 544,276.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,859.28 : 722,215.44 = 363,139.20 : x
  2. Step 2: Convert to fraction form
    481,859.28/722,215.44 = 363,139.20/x
  3. Step 3: Cross multiply
    481,859.28x = 722,215.44 × 363,139.20
  4. Step 4: Simplify right side
    481,859.28x = 262,264,737,109.25
  5. Step 5: Solve for x
    x = 262,264,737,109.25/481,859.28
  6. Step 6: Final answer
    x = 544,276.61

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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.