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Finding the Fourth Proportional to 481,034.64, 663,800.12 and 266,163.90

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Solution

The fourth proportional to 481,034.64, 663,800.12 and 266,163.90 is: 367,290.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,034.64 : 663,800.12 = 266,163.90 : x
  2. Step 2: Convert to fraction form
    481,034.64/663,800.12 = 266,163.90/x
  3. Step 3: Cross multiply
    481,034.64x = 663,800.12 × 266,163.90
  4. Step 4: Simplify right side
    481,034.64x = 176,679,628,759.67
  5. Step 5: Solve for x
    x = 176,679,628,759.67/481,034.64
  6. Step 6: Final answer
    x = 367,290.86

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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.