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Finding the Fourth Proportional to 581,699.40, 873,205.20 and 449,167.20

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Solution

The fourth proportional to 581,699.40, 873,205.20 and 449,167.20 is: 674,257.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,699.40 : 873,205.20 = 449,167.20 : x
  2. Step 2: Convert to fraction form
    581,699.40/873,205.20 = 449,167.20/x
  3. Step 3: Cross multiply
    581,699.40x = 873,205.20 × 449,167.20
  4. Step 4: Simplify right side
    581,699.40x = 392,215,134,709.44
  5. Step 5: Solve for x
    x = 392,215,134,709.44/581,699.40
  6. Step 6: Final answer
    x = 674,257.42

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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.