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Finding the Fourth Proportional to 481,252.71, 664,120.68 and 266,388.15

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Solution

The fourth proportional to 481,252.71, 664,120.68 and 266,388.15 is: 367,611.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,252.71 : 664,120.68 = 266,388.15 : x
  2. Step 2: Convert to fraction form
    481,252.71/664,120.68 = 266,388.15/x
  3. Step 3: Cross multiply
    481,252.71x = 664,120.68 × 266,388.15
  4. Step 4: Simplify right side
    481,252.71x = 176,913,879,321.94
  5. Step 5: Solve for x
    x = 176,913,879,321.94/481,252.71
  6. Step 6: Final answer
    x = 367,611.19

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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.