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Finding the Fourth Proportional to 408,568.88, 612,717.24 and 171,867.44

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Solution

The fourth proportional to 408,568.88, 612,717.24 and 171,867.44 is: 257,743.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,568.88 : 612,717.24 = 171,867.44 : x
  2. Step 2: Convert to fraction form
    408,568.88/612,717.24 = 171,867.44/x
  3. Step 3: Cross multiply
    408,568.88x = 612,717.24 × 171,867.44
  4. Step 4: Simplify right side
    408,568.88x = 105,306,143,482.67
  5. Step 5: Solve for x
    x = 105,306,143,482.67/408,568.88
  6. Step 6: Final answer
    x = 257,743.92

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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.