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Finding the Fourth Proportional to 794.20, 1,191.66 and 332.32

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Solution

The fourth proportional to 794.20, 1,191.66 and 332.32 is: 498.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.20 : 1,191.66 = 332.32 : x
  2. Step 2: Convert to fraction form
    794.20/1,191.66 = 332.32/x
  3. Step 3: Cross multiply
    794.20x = 1,191.66 × 332.32
  4. Step 4: Simplify right side
    794.20x = 396,012.45
  5. Step 5: Solve for x
    x = 396,012.45/794.20
  6. Step 6: Final answer
    x = 498.63

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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.