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Finding the Fourth Proportional to 481,151.25, 663,919.22 and 266,290.80

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Solution

The fourth proportional to 481,151.25, 663,919.22 and 266,290.80 is: 367,442.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,151.25 : 663,919.22 = 266,290.80 : x
  2. Step 2: Convert to fraction form
    481,151.25/663,919.22 = 266,290.80/x
  3. Step 3: Cross multiply
    481,151.25x = 663,919.22 × 266,290.80
  4. Step 4: Simplify right side
    481,151.25x = 176,795,580,229.18
  5. Step 5: Solve for x
    x = 176,795,580,229.18/481,151.25
  6. Step 6: Final answer
    x = 367,442.84

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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.