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Finding the Fourth Proportional to 683.58, 1,025.36 and 196.64

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Solution

The fourth proportional to 683.58, 1,025.36 and 196.64 is: 294.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    683.58 : 1,025.36 = 196.64 : x
  2. Step 2: Convert to fraction form
    683.58/1,025.36 = 196.64/x
  3. Step 3: Cross multiply
    683.58x = 1,025.36 × 196.64
  4. Step 4: Simplify right side
    683.58x = 201,620.68
  5. Step 5: Solve for x
    x = 201,620.68/683.58
  6. Step 6: Final answer
    x = 294.95

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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.