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Finding the Fourth Proportional to 543,505.38, 811,598.06 and 443,863.23

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Solution

The fourth proportional to 543,505.38, 811,598.06 and 443,863.23 is: 662,805.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,505.38 : 811,598.06 = 443,863.23 : x
  2. Step 2: Convert to fraction form
    543,505.38/811,598.06 = 443,863.23/x
  3. Step 3: Cross multiply
    543,505.38x = 811,598.06 × 443,863.23
  4. Step 4: Simplify right side
    543,505.38x = 360,238,538,380.56
  5. Step 5: Solve for x
    x = 360,238,538,380.56/543,505.38
  6. Step 6: Final answer
    x = 662,805.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.