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Finding the Fourth Proportional to 443,843.88, 665,933.55 and 266,474.53

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Solution

The fourth proportional to 443,843.88, 665,933.55 and 266,474.53 is: 399,812.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,843.88 : 665,933.55 = 266,474.53 : x
  2. Step 2: Convert to fraction form
    443,843.88/665,933.55 = 266,474.53/x
  3. Step 3: Cross multiply
    443,843.88x = 665,933.55 × 266,474.53
  4. Step 4: Simplify right side
    443,843.88x = 177,454,329,747.48
  5. Step 5: Solve for x
    x = 177,454,329,747.48/443,843.88
  6. Step 6: Final answer
    x = 399,812.50

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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.