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Finding the Fourth Proportional to 422,370.40, 582,871.12 and 252,604.52

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Solution

The fourth proportional to 422,370.40, 582,871.12 and 252,604.52 is: 348,594.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,370.40 : 582,871.12 = 252,604.52 : x
  2. Step 2: Convert to fraction form
    422,370.40/582,871.12 = 252,604.52/x
  3. Step 3: Cross multiply
    422,370.40x = 582,871.12 × 252,604.52
  4. Step 4: Simplify right side
    422,370.40x = 147,235,879,489.46
  5. Step 5: Solve for x
    x = 147,235,879,489.46/422,370.40
  6. Step 6: Final answer
    x = 348,594.22

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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.