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Finding the Fourth Proportional to 3,193.75, 4,407.65 and 1,796.77

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Solution

The fourth proportional to 3,193.75, 4,407.65 and 1,796.77 is: 2,479.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,193.75 : 4,407.65 = 1,796.77 : x
  2. Step 2: Convert to fraction form
    3,193.75/4,407.65 = 1,796.77/x
  3. Step 3: Cross multiply
    3,193.75x = 4,407.65 × 1,796.77
  4. Step 4: Simplify right side
    3,193.75x = 7,919,524.31
  5. Step 5: Solve for x
    x = 7,919,524.31/3,193.75
  6. Step 6: Final answer
    x = 2,479.69

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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.