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Finding the Fourth Proportional to 797.42, 1,196.21 and 249.52

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Solution

The fourth proportional to 797.42, 1,196.21 and 249.52 is: 374.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    797.42 : 1,196.21 = 249.52 : x
  2. Step 2: Convert to fraction form
    797.42/1,196.21 = 249.52/x
  3. Step 3: Cross multiply
    797.42x = 1,196.21 × 249.52
  4. Step 4: Simplify right side
    797.42x = 298,478.32
  5. Step 5: Solve for x
    x = 298,478.32/797.42
  6. Step 6: Final answer
    x = 374.31

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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.