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Finding the Fourth Proportional to 276,659.20, 415,183.20 and 177,061.60

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Solution

The fourth proportional to 276,659.20, 415,183.20 and 177,061.60 is: 265,716.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,659.20 : 415,183.20 = 177,061.60 : x
  2. Step 2: Convert to fraction form
    276,659.20/415,183.20 = 177,061.60/x
  3. Step 3: Cross multiply
    276,659.20x = 415,183.20 × 177,061.60
  4. Step 4: Simplify right side
    276,659.20x = 73,513,001,685.12
  5. Step 5: Solve for x
    x = 73,513,001,685.12/276,659.20
  6. Step 6: Final answer
    x = 265,716.82

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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.