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Finding the Fourth Proportional to 2,195.66, 3,293.90 and 734.90

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Solution

The fourth proportional to 2,195.66, 3,293.90 and 734.90 is: 1,102.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.66 : 3,293.90 = 734.90 : x
  2. Step 2: Convert to fraction form
    2,195.66/3,293.90 = 734.90/x
  3. Step 3: Cross multiply
    2,195.66x = 3,293.90 × 734.90
  4. Step 4: Simplify right side
    2,195.66x = 2,420,666.97
  5. Step 5: Solve for x
    x = 2,420,666.97/2,195.66
  6. Step 6: Final answer
    x = 1,102.48

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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.