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Finding the Fourth Proportional to 481,220.88, 664,067.88 and 266,361.36

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Solution

The fourth proportional to 481,220.88, 664,067.88 and 266,361.36 is: 367,569.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,220.88 : 664,067.88 = 266,361.36 : x
  2. Step 2: Convert to fraction form
    481,220.88/664,067.88 = 266,361.36/x
  3. Step 3: Cross multiply
    481,220.88x = 664,067.88 × 266,361.36
  4. Step 4: Simplify right side
    481,220.88x = 176,882,023,649.12
  5. Step 5: Solve for x
    x = 176,882,023,649.12/481,220.88
  6. Step 6: Final answer
    x = 367,569.30

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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.