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Finding the Fourth Proportional to 794.66, 1,190.94 and 331.92

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Solution

The fourth proportional to 794.66, 1,190.94 and 331.92 is: 497.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.66 : 1,190.94 = 331.92 : x
  2. Step 2: Convert to fraction form
    794.66/1,190.94 = 331.92/x
  3. Step 3: Cross multiply
    794.66x = 1,190.94 × 331.92
  4. Step 4: Simplify right side
    794.66x = 395,296.80
  5. Step 5: Solve for x
    x = 395,296.80/794.66
  6. Step 6: Final answer
    x = 497.44

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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.