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Finding the Fourth Proportional to 511,997.20, 768,226.20 and 179,811.60

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Solution

The fourth proportional to 511,997.20, 768,226.20 and 179,811.60 is: 269,798.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,997.20 : 768,226.20 = 179,811.60 : x
  2. Step 2: Convert to fraction form
    511,997.20/768,226.20 = 179,811.60/x
  3. Step 3: Cross multiply
    511,997.20x = 768,226.20 × 179,811.60
  4. Step 4: Simplify right side
    511,997.20x = 138,135,982,183.92
  5. Step 5: Solve for x
    x = 138,135,982,183.92/511,997.20
  6. Step 6: Final answer
    x = 269,798.32

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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.