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Finding the Fourth Proportional to 392,454.33, 541,661.63 and 222,704.25

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Solution

The fourth proportional to 392,454.33, 541,661.63 and 222,704.25 is: 307,374.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,454.33 : 541,661.63 = 222,704.25 : x
  2. Step 2: Convert to fraction form
    392,454.33/541,661.63 = 222,704.25/x
  3. Step 3: Cross multiply
    392,454.33x = 541,661.63 × 222,704.25
  4. Step 4: Simplify right side
    392,454.33x = 120,630,345,949.41
  5. Step 5: Solve for x
    x = 120,630,345,949.41/392,454.33
  6. Step 6: Final answer
    x = 307,374.23

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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.