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Finding the Fourth Proportional to 356,123.44, 491,450.76 and 194,979.76

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Solution

The fourth proportional to 356,123.44, 491,450.76 and 194,979.76 is: 269,072.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,123.44 : 491,450.76 = 194,979.76 : x
  2. Step 2: Convert to fraction form
    356,123.44/491,450.76 = 194,979.76/x
  3. Step 3: Cross multiply
    356,123.44x = 491,450.76 × 194,979.76
  4. Step 4: Simplify right side
    356,123.44x = 95,822,951,236.62
  5. Step 5: Solve for x
    x = 95,822,951,236.62/356,123.44
  6. Step 6: Final answer
    x = 269,072.29

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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.