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Finding the Fourth Proportional to 356,081.73, 491,391.95 and 194,936.73

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Solution

The fourth proportional to 356,081.73, 491,391.95 and 194,936.73 is: 269,012.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,081.73 : 491,391.95 = 194,936.73 : x
  2. Step 2: Convert to fraction form
    356,081.73/491,391.95 = 194,936.73/x
  3. Step 3: Cross multiply
    356,081.73x = 491,391.95 × 194,936.73
  4. Step 4: Simplify right side
    356,081.73x = 95,790,338,906.64
  5. Step 5: Solve for x
    x = 95,790,338,906.64/356,081.73
  6. Step 6: Final answer
    x = 269,012.23

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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.