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Finding the Fourth Proportional to 797.12, 1,195.47 and 249.29

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Solution

The fourth proportional to 797.12, 1,195.47 and 249.29 is: 373.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    797.12 : 1,195.47 = 249.29 : x
  2. Step 2: Convert to fraction form
    797.12/1,195.47 = 249.29/x
  3. Step 3: Cross multiply
    797.12x = 1,195.47 × 249.29
  4. Step 4: Simplify right side
    797.12x = 298,012.74
  5. Step 5: Solve for x
    x = 298,012.74/797.12
  6. Step 6: Final answer
    x = 373.86

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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.