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Finding the Fourth Proportional to 481,717.98, 664,808.31 and 266,877.90

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Solution

The fourth proportional to 481,717.98, 664,808.31 and 266,877.90 is: 368,312.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,717.98 : 664,808.31 = 266,877.90 : x
  2. Step 2: Convert to fraction form
    481,717.98/664,808.31 = 266,877.90/x
  3. Step 3: Cross multiply
    481,717.98x = 664,808.31 × 266,877.90
  4. Step 4: Simplify right side
    481,717.98x = 177,422,645,675.35
  5. Step 5: Solve for x
    x = 177,422,645,675.35/481,717.98
  6. Step 6: Final answer
    x = 368,312.28

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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.