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Finding the Fourth Proportional to 422,068.38, 582,509.94 and 240,738.74

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Solution

The fourth proportional to 422,068.38, 582,509.94 and 240,738.74 is: 332,251.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,068.38 : 582,509.94 = 240,738.74 : x
  2. Step 2: Convert to fraction form
    422,068.38/582,509.94 = 240,738.74/x
  3. Step 3: Cross multiply
    422,068.38x = 582,509.94 × 240,738.74
  4. Step 4: Simplify right side
    422,068.38x = 140,232,708,993.08
  5. Step 5: Solve for x
    x = 140,232,708,993.08/422,068.38
  6. Step 6: Final answer
    x = 332,251.16

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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.