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Finding the Fourth Proportional to 926.23, 1,391.15 and 796.19

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Solution

The fourth proportional to 926.23, 1,391.15 and 796.19 is: 1,195.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    926.23 : 1,391.15 = 796.19 : x
  2. Step 2: Convert to fraction form
    926.23/1,391.15 = 796.19/x
  3. Step 3: Cross multiply
    926.23x = 1,391.15 × 796.19
  4. Step 4: Simplify right side
    926.23x = 1,107,615.74
  5. Step 5: Solve for x
    x = 1,107,615.74/926.23
  6. Step 6: Final answer
    x = 1,195.83

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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.