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Finding the Fourth Proportional to 3,193.68, 4,407.12 and 1,796.88

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Solution

The fourth proportional to 3,193.68, 4,407.12 and 1,796.88 is: 2,479.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,193.68 : 4,407.12 = 1,796.88 : x
  2. Step 2: Convert to fraction form
    3,193.68/4,407.12 = 1,796.88/x
  3. Step 3: Cross multiply
    3,193.68x = 4,407.12 × 1,796.88
  4. Step 4: Simplify right side
    3,193.68x = 7,919,065.79
  5. Step 5: Solve for x
    x = 7,919,065.79/3,193.68
  6. Step 6: Final answer
    x = 2,479.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.