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Finding the Fourth Proportional to 793.28, 1,094.72 and 682.56

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Solution

The fourth proportional to 793.28, 1,094.72 and 682.56 is: 941.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.28 : 1,094.72 = 682.56 : x
  2. Step 2: Convert to fraction form
    793.28/1,094.72 = 682.56/x
  3. Step 3: Cross multiply
    793.28x = 1,094.72 × 682.56
  4. Step 4: Simplify right side
    793.28x = 747,212.08
  5. Step 5: Solve for x
    x = 747,212.08/793.28
  6. Step 6: Final answer
    x = 941.93

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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.