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Finding the Fourth Proportional to 629.92, 944.99 and 196.97

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Solution

The fourth proportional to 629.92, 944.99 and 196.97 is: 295.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.92 : 944.99 = 196.97 : x
  2. Step 2: Convert to fraction form
    629.92/944.99 = 196.97/x
  3. Step 3: Cross multiply
    629.92x = 944.99 × 196.97
  4. Step 4: Simplify right side
    629.92x = 186,134.68
  5. Step 5: Solve for x
    x = 186,134.68/629.92
  6. Step 6: Final answer
    x = 295.49

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.