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Finding the Fourth Proportional to 422,283.32, 582,760.46 and 240,991.64

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Solution

The fourth proportional to 422,283.32, 582,760.46 and 240,991.64 is: 332,573.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,283.32 : 582,760.46 = 240,991.64 : x
  2. Step 2: Convert to fraction form
    422,283.32/582,760.46 = 240,991.64/x
  3. Step 3: Cross multiply
    422,283.32x = 582,760.46 × 240,991.64
  4. Step 4: Simplify right side
    422,283.32x = 140,440,397,777.60
  5. Step 5: Solve for x
    x = 140,440,397,777.60/422,283.32
  6. Step 6: Final answer
    x = 332,573.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.