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Finding the Fourth Proportional to 444,620.20, 666,476.70 and 219,634.60

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Solution

The fourth proportional to 444,620.20, 666,476.70 and 219,634.60 is: 329,227.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,620.20 : 666,476.70 = 219,634.60 : x
  2. Step 2: Convert to fraction form
    444,620.20/666,476.70 = 219,634.60/x
  3. Step 3: Cross multiply
    444,620.20x = 666,476.70 × 219,634.60
  4. Step 4: Simplify right side
    444,620.20x = 146,381,343,413.82
  5. Step 5: Solve for x
    x = 146,381,343,413.82/444,620.20
  6. Step 6: Final answer
    x = 329,227.83

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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.