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Finding the Fourth Proportional to 587,488.20, 810,662.04 and 329,305.56

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Solution

The fourth proportional to 587,488.20, 810,662.04 and 329,305.56 is: 454,401.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,488.20 : 810,662.04 = 329,305.56 : x
  2. Step 2: Convert to fraction form
    587,488.20/810,662.04 = 329,305.56/x
  3. Step 3: Cross multiply
    587,488.20x = 810,662.04 × 329,305.56
  4. Step 4: Simplify right side
    587,488.20x = 266,955,517,052.94
  5. Step 5: Solve for x
    x = 266,955,517,052.94/587,488.20
  6. Step 6: Final answer
    x = 454,401.50

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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.