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Finding the Fourth Proportional to 534,439.17, 737,538 and 304,991.88

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Solution

The fourth proportional to 534,439.17, 737,538 and 304,991.88 is: 420,895.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,439.17 : 737,538 = 304,991.88 : x
  2. Step 2: Convert to fraction form
    534,439.17/737,538 = 304,991.88/x
  3. Step 3: Cross multiply
    534,439.17x = 737,538 × 304,991.88
  4. Step 4: Simplify right side
    534,439.17x = 224,943,101,191.44
  5. Step 5: Solve for x
    x = 224,943,101,191.44/534,439.17
  6. Step 6: Final answer
    x = 420,895.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.