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Finding the Fourth Proportional to 1,383.92, 1,909.69 and 794.33

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Solution

The fourth proportional to 1,383.92, 1,909.69 and 794.33 is: 1,096.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383.92 : 1,909.69 = 794.33 : x
  2. Step 2: Convert to fraction form
    1,383.92/1,909.69 = 794.33/x
  3. Step 3: Cross multiply
    1,383.92x = 1,909.69 × 794.33
  4. Step 4: Simplify right side
    1,383.92x = 1,516,912.52
  5. Step 5: Solve for x
    x = 1,516,912.52/1,383.92
  6. Step 6: Final answer
    x = 1,096.10

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.