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Finding the Fourth Proportional to 422,284.32, 582,745.79 and 240,991.59

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Solution

The fourth proportional to 422,284.32, 582,745.79 and 240,991.59 is: 332,564.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,284.32 : 582,745.79 = 240,991.59 : x
  2. Step 2: Convert to fraction form
    422,284.32/582,745.79 = 240,991.59/x
  3. Step 3: Cross multiply
    422,284.32x = 582,745.79 × 240,991.59
  4. Step 4: Simplify right side
    422,284.32x = 140,436,834,497.91
  5. Step 5: Solve for x
    x = 140,436,834,497.91/422,284.32
  6. Step 6: Final answer
    x = 332,564.64

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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.