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Finding the Fourth Proportional to 481,163.52, 663,978.12 and 266,290.80

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Solution

The fourth proportional to 481,163.52, 663,978.12 and 266,290.80 is: 367,466.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,163.52 : 663,978.12 = 266,290.80 : x
  2. Step 2: Convert to fraction form
    481,163.52/663,978.12 = 266,290.80/x
  3. Step 3: Cross multiply
    481,163.52x = 663,978.12 × 266,290.80
  4. Step 4: Simplify right side
    481,163.52x = 176,811,264,757.30
  5. Step 5: Solve for x
    x = 176,811,264,757.30/481,163.52
  6. Step 6: Final answer
    x = 367,466.06

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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.