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Finding the Fourth Proportional to 3,493.56, 5,240.30 and 896.48

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Solution

The fourth proportional to 3,493.56, 5,240.30 and 896.48 is: 1,344.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,493.56 : 5,240.30 = 896.48 : x
  2. Step 2: Convert to fraction form
    3,493.56/5,240.30 = 896.48/x
  3. Step 3: Cross multiply
    3,493.56x = 5,240.30 × 896.48
  4. Step 4: Simplify right side
    3,493.56x = 4,697,824.14
  5. Step 5: Solve for x
    x = 4,697,824.14/3,493.56
  6. Step 6: Final answer
    x = 1,344.71

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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.