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Finding the Fourth Proportional to 543,956.70, 816,098.04 and 219,577.78

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Solution

The fourth proportional to 543,956.70, 816,098.04 and 219,577.78 is: 329,432.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,956.70 : 816,098.04 = 219,577.78 : x
  2. Step 2: Convert to fraction form
    543,956.70/816,098.04 = 219,577.78/x
  3. Step 3: Cross multiply
    543,956.70x = 816,098.04 × 219,577.78
  4. Step 4: Simplify right side
    543,956.70x = 179,196,995,885.55
  5. Step 5: Solve for x
    x = 179,196,995,885.55/543,956.70
  6. Step 6: Final answer
    x = 329,432.46

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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.