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Finding the Fourth Proportional to 2,930.16, 4,394.82 and 982.38

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Solution

The fourth proportional to 2,930.16, 4,394.82 and 982.38 is: 1,473.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.16 : 4,394.82 = 982.38 : x
  2. Step 2: Convert to fraction form
    2,930.16/4,394.82 = 982.38/x
  3. Step 3: Cross multiply
    2,930.16x = 4,394.82 × 982.38
  4. Step 4: Simplify right side
    2,930.16x = 4,317,383.27
  5. Step 5: Solve for x
    x = 4,317,383.27/2,930.16
  6. Step 6: Final answer
    x = 1,473.43

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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.