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Finding the Fourth Proportional to 796.13, 1,191.87 and 591.60

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Solution

The fourth proportional to 796.13, 1,191.87 and 591.60 is: 885.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.13 : 1,191.87 = 591.60 : x
  2. Step 2: Convert to fraction form
    796.13/1,191.87 = 591.60/x
  3. Step 3: Cross multiply
    796.13x = 1,191.87 × 591.60
  4. Step 4: Simplify right side
    796.13x = 705,110.29
  5. Step 5: Solve for x
    x = 705,110.29/796.13
  6. Step 6: Final answer
    x = 885.68

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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.