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Finding the Fourth Proportional to 408,372.12, 612,558.18 and 168,482.52

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Solution

The fourth proportional to 408,372.12, 612,558.18 and 168,482.52 is: 252,723.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,372.12 : 612,558.18 = 168,482.52 : x
  2. Step 2: Convert to fraction form
    408,372.12/612,558.18 = 168,482.52/x
  3. Step 3: Cross multiply
    408,372.12x = 612,558.18 × 168,482.52
  4. Step 4: Simplify right side
    408,372.12x = 103,205,345,813.01
  5. Step 5: Solve for x
    x = 103,205,345,813.01/408,372.12
  6. Step 6: Final answer
    x = 252,723.78

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Similar ratio
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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.