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Finding the Fourth Proportional to 481,005.44, 663,759.78 and 266,132.70

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Solution

The fourth proportional to 481,005.44, 663,759.78 and 266,132.70 is: 367,247.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,005.44 : 663,759.78 = 266,132.70 : x
  2. Step 2: Convert to fraction form
    481,005.44/663,759.78 = 266,132.70/x
  3. Step 3: Cross multiply
    481,005.44x = 663,759.78 × 266,132.70
  4. Step 4: Simplify right side
    481,005.44x = 176,648,182,402.81
  5. Step 5: Solve for x
    x = 176,648,182,402.81/481,005.44
  6. Step 6: Final answer
    x = 367,247.78

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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.