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Finding the Fourth Proportional to 3,463.39, 5,195.09 and 866.35

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Solution

The fourth proportional to 3,463.39, 5,195.09 and 866.35 is: 1,299.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,463.39 : 5,195.09 = 866.35 : x
  2. Step 2: Convert to fraction form
    3,463.39/5,195.09 = 866.35/x
  3. Step 3: Cross multiply
    3,463.39x = 5,195.09 × 866.35
  4. Step 4: Simplify right side
    3,463.39x = 4,500,766.22
  5. Step 5: Solve for x
    x = 4,500,766.22/3,463.39
  6. Step 6: Final answer
    x = 1,299.53

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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.