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Finding the Fourth Proportional to 694,005.60, 957,358.44 and 422,156.64

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Solution

The fourth proportional to 694,005.60, 957,358.44 and 422,156.64 is: 582,351.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,005.60 : 957,358.44 = 422,156.64 : x
  2. Step 2: Convert to fraction form
    694,005.60/957,358.44 = 422,156.64/x
  3. Step 3: Cross multiply
    694,005.60x = 957,358.44 × 422,156.64
  4. Step 4: Simplify right side
    694,005.60x = 404,155,222,306.04
  5. Step 5: Solve for x
    x = 404,155,222,306.04/694,005.60
  6. Step 6: Final answer
    x = 582,351.53

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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.