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Finding the Fourth Proportional to 444,013.80, 666,020.70 and 276,052.20

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Solution

The fourth proportional to 444,013.80, 666,020.70 and 276,052.20 is: 414,078.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,013.80 : 666,020.70 = 276,052.20 : x
  2. Step 2: Convert to fraction form
    444,013.80/666,020.70 = 276,052.20/x
  3. Step 3: Cross multiply
    444,013.80x = 666,020.70 × 276,052.20
  4. Step 4: Simplify right side
    444,013.80x = 183,856,479,480.54
  5. Step 5: Solve for x
    x = 183,856,479,480.54/444,013.80
  6. Step 6: Final answer
    x = 414,078.30

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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.