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Finding the Fourth Proportional to 481,253.46, 664,121.72 and 266,388.90

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Solution

The fourth proportional to 481,253.46, 664,121.72 and 266,388.90 is: 367,612.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,253.46 : 664,121.72 = 266,388.90 : x
  2. Step 2: Convert to fraction form
    481,253.46/664,121.72 = 266,388.90/x
  3. Step 3: Cross multiply
    481,253.46x = 664,121.72 × 266,388.90
  4. Step 4: Simplify right side
    481,253.46x = 176,914,653,124.96
  5. Step 5: Solve for x
    x = 176,914,653,124.96/481,253.46
  6. Step 6: Final answer
    x = 367,612.22

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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.