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Finding the Fourth Proportional to 503,766.36, 755,760.78 and 166,912.20

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Solution

The fourth proportional to 503,766.36, 755,760.78 and 166,912.20 is: 250,405.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,766.36 : 755,760.78 = 166,912.20 : x
  2. Step 2: Convert to fraction form
    503,766.36/755,760.78 = 166,912.20/x
  3. Step 3: Cross multiply
    503,766.36x = 755,760.78 × 166,912.20
  4. Step 4: Simplify right side
    503,766.36x = 126,145,694,463.52
  5. Step 5: Solve for x
    x = 126,145,694,463.52/503,766.36
  6. Step 6: Final answer
    x = 250,405.16

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1.5x scale

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.