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Finding the Fourth Proportional to 422,374.40, 582,876.64 and 252,608.52

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Solution

The fourth proportional to 422,374.40, 582,876.64 and 252,608.52 is: 348,599.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,374.40 : 582,876.64 = 252,608.52 : x
  2. Step 2: Convert to fraction form
    422,374.40/582,876.64 = 252,608.52/x
  3. Step 3: Cross multiply
    422,374.40x = 582,876.64 × 252,608.52
  4. Step 4: Simplify right side
    422,374.40x = 147,239,605,372.97
  5. Step 5: Solve for x
    x = 147,239,605,372.97/422,374.40
  6. Step 6: Final answer
    x = 348,599.74

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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.