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Finding the Fourth Proportional to 444,867.48, 667,415.02 and 129,324.39

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Solution

The fourth proportional to 444,867.48, 667,415.02 and 129,324.39 is: 194,019.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,867.48 : 667,415.02 = 129,324.39 : x
  2. Step 2: Convert to fraction form
    444,867.48/667,415.02 = 129,324.39/x
  3. Step 3: Cross multiply
    444,867.48x = 667,415.02 × 129,324.39
  4. Step 4: Simplify right side
    444,867.48x = 86,313,038,521.14
  5. Step 5: Solve for x
    x = 86,313,038,521.14/444,867.48
  6. Step 6: Final answer
    x = 194,019.66

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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.