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Finding the Fourth Proportional to 993.96, 1,367.10 and 797.04

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Solution

The fourth proportional to 993.96, 1,367.10 and 797.04 is: 1,096.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    993.96 : 1,367.10 = 797.04 : x
  2. Step 2: Convert to fraction form
    993.96/1,367.10 = 797.04/x
  3. Step 3: Cross multiply
    993.96x = 1,367.10 × 797.04
  4. Step 4: Simplify right side
    993.96x = 1,089,633.38
  5. Step 5: Solve for x
    x = 1,089,633.38/993.96
  6. Step 6: Final answer
    x = 1,096.25

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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.