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Finding the Fourth Proportional to 587,491.75, 810,731.72 and 329,367.43

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Solution

The fourth proportional to 587,491.75, 810,731.72 and 329,367.43 is: 454,523.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,491.75 : 810,731.72 = 329,367.43 : x
  2. Step 2: Convert to fraction form
    587,491.75/810,731.72 = 329,367.43/x
  3. Step 3: Cross multiply
    587,491.75x = 810,731.72 × 329,367.43
  4. Step 4: Simplify right side
    587,491.75x = 267,028,623,035.88
  5. Step 5: Solve for x
    x = 267,028,623,035.88/587,491.75
  6. Step 6: Final answer
    x = 454,523.19

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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.