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Finding the Fourth Proportional to 949.33, 1,425.21 and 805.96

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Solution

The fourth proportional to 949.33, 1,425.21 and 805.96 is: 1,209.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    949.33 : 1,425.21 = 805.96 : x
  2. Step 2: Convert to fraction form
    949.33/1,425.21 = 805.96/x
  3. Step 3: Cross multiply
    949.33x = 1,425.21 × 805.96
  4. Step 4: Simplify right side
    949.33x = 1,148,662.25
  5. Step 5: Solve for x
    x = 1,148,662.25/949.33
  6. Step 6: Final answer
    x = 1,209.97

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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.