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Finding the Fourth Proportional to 2,609.34, 3,914.01 and 963.97

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Solution

The fourth proportional to 2,609.34, 3,914.01 and 963.97 is: 1,445.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,609.34 : 3,914.01 = 963.97 : x
  2. Step 2: Convert to fraction form
    2,609.34/3,914.01 = 963.97/x
  3. Step 3: Cross multiply
    2,609.34x = 3,914.01 × 963.97
  4. Step 4: Simplify right side
    2,609.34x = 3,772,988.22
  5. Step 5: Solve for x
    x = 3,772,988.22/2,609.34
  6. Step 6: Final answer
    x = 1,445.96

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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.