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Finding the Fourth Proportional to 559,487.88, 839,963.40 and 332,198.28

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Solution

The fourth proportional to 559,487.88, 839,963.40 and 332,198.28 is: 498,731.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,487.88 : 839,963.40 = 332,198.28 : x
  2. Step 2: Convert to fraction form
    559,487.88/839,963.40 = 332,198.28/x
  3. Step 3: Cross multiply
    559,487.88x = 839,963.40 × 332,198.28
  4. Step 4: Simplify right side
    559,487.88x = 279,034,396,742.95
  5. Step 5: Solve for x
    x = 279,034,396,742.95/559,487.88
  6. Step 6: Final answer
    x = 498,731.80

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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.