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Finding the Fourth Proportional to 543,952.89, 816,082.43 and 189,002.79

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Solution

The fourth proportional to 543,952.89, 816,082.43 and 189,002.79 is: 283,557.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,952.89 : 816,082.43 = 189,002.79 : x
  2. Step 2: Convert to fraction form
    543,952.89/816,082.43 = 189,002.79/x
  3. Step 3: Cross multiply
    543,952.89x = 816,082.43 × 189,002.79
  4. Step 4: Simplify right side
    543,952.89x = 154,241,855,194.97
  5. Step 5: Solve for x
    x = 154,241,855,194.97/543,952.89
  6. Step 6: Final answer
    x = 283,557.38

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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.