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Finding the Fourth Proportional to 3,463.74, 5,195.61 and 866.68

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Solution

The fourth proportional to 3,463.74, 5,195.61 and 866.68 is: 1,300.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,463.74 : 5,195.61 = 866.68 : x
  2. Step 2: Convert to fraction form
    3,463.74/5,195.61 = 866.68/x
  3. Step 3: Cross multiply
    3,463.74x = 5,195.61 × 866.68
  4. Step 4: Simplify right side
    3,463.74x = 4,502,918.29
  5. Step 5: Solve for x
    x = 4,502,918.29/3,463.74
  6. Step 6: Final answer
    x = 1,300.02

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Similar ratio
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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.