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Finding the Fourth Proportional to 444,815.73, 667,243.62 and 145,314.57

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Solution

The fourth proportional to 444,815.73, 667,243.62 and 145,314.57 is: 217,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,815.73 : 667,243.62 = 145,314.57 : x
  2. Step 2: Convert to fraction form
    444,815.73/667,243.62 = 145,314.57/x
  3. Step 3: Cross multiply
    444,815.73x = 667,243.62 × 145,314.57
  4. Step 4: Simplify right side
    444,815.73x = 96,960,219,725.54
  5. Step 5: Solve for x
    x = 96,960,219,725.54/444,815.73
  6. Step 6: Final answer
    x = 217,978.40

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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.