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Finding the Fourth Proportional to 392,123.43, 541,111.19 and 222,324.75

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Solution

The fourth proportional to 392,123.43, 541,111.19 and 222,324.75 is: 306,797.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,123.43 : 541,111.19 = 222,324.75 : x
  2. Step 2: Convert to fraction form
    392,123.43/541,111.19 = 222,324.75/x
  3. Step 3: Cross multiply
    392,123.43x = 541,111.19 × 222,324.75
  4. Step 4: Simplify right side
    392,123.43x = 120,302,408,927.33
  5. Step 5: Solve for x
    x = 120,302,408,927.33/392,123.43
  6. Step 6: Final answer
    x = 306,797.30

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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.