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Finding the Fourth Proportional to 444,844.20, 667,331.10 and 145,338.60

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Solution

The fourth proportional to 444,844.20, 667,331.10 and 145,338.60 is: 218,029.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,844.20 : 667,331.10 = 145,338.60 : x
  2. Step 2: Convert to fraction form
    444,844.20/667,331.10 = 145,338.60/x
  3. Step 3: Cross multiply
    444,844.20x = 667,331.10 × 145,338.60
  4. Step 4: Simplify right side
    444,844.20x = 96,988,967,810.46
  5. Step 5: Solve for x
    x = 96,988,967,810.46/444,844.20
  6. Step 6: Final answer
    x = 218,029.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.