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Finding the Fourth Proportional to 2,195.64, 3,294.95 and 896.81

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Solution

The fourth proportional to 2,195.64, 3,294.95 and 896.81 is: 1,345.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.64 : 3,294.95 = 896.81 : x
  2. Step 2: Convert to fraction form
    2,195.64/3,294.95 = 896.81/x
  3. Step 3: Cross multiply
    2,195.64x = 3,294.95 × 896.81
  4. Step 4: Simplify right side
    2,195.64x = 2,954,923.15
  5. Step 5: Solve for x
    x = 2,954,923.15/2,195.64
  6. Step 6: Final answer
    x = 1,345.81

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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.