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Finding the Fourth Proportional to 2,155.32, 3,233.39 and 694.08

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Solution

The fourth proportional to 2,155.32, 3,233.39 and 694.08 is: 1,041.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.32 : 3,233.39 = 694.08 : x
  2. Step 2: Convert to fraction form
    2,155.32/3,233.39 = 694.08/x
  3. Step 3: Cross multiply
    2,155.32x = 3,233.39 × 694.08
  4. Step 4: Simplify right side
    2,155.32x = 2,244,227.86
  5. Step 5: Solve for x
    x = 2,244,227.86/2,155.32
  6. Step 6: Final answer
    x = 1,041.25

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.