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Finding the Fourth Proportional to 481,805.47, 664,918.47 and 275,134.88

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Solution

The fourth proportional to 481,805.47, 664,918.47 and 275,134.88 is: 379,701.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,805.47 : 664,918.47 = 275,134.88 : x
  2. Step 2: Convert to fraction form
    481,805.47/664,918.47 = 275,134.88/x
  3. Step 3: Cross multiply
    481,805.47x = 664,918.47 × 275,134.88
  4. Step 4: Simplify right side
    481,805.47x = 182,942,261,375.36
  5. Step 5: Solve for x
    x = 182,942,261,375.36/481,805.47
  6. Step 6: Final answer
    x = 379,701.51

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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.