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Finding the Fourth Proportional to 3,481.55, 5,222.30 and 884.48

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Solution

The fourth proportional to 3,481.55, 5,222.30 and 884.48 is: 1,326.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.55 : 5,222.30 = 884.48 : x
  2. Step 2: Convert to fraction form
    3,481.55/5,222.30 = 884.48/x
  3. Step 3: Cross multiply
    3,481.55x = 5,222.30 × 884.48
  4. Step 4: Simplify right side
    3,481.55x = 4,619,019.90
  5. Step 5: Solve for x
    x = 4,619,019.90/3,481.55
  6. Step 6: Final answer
    x = 1,326.72

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1.5x scale

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.