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Finding the Fourth Proportional to 3,226.92, 4,840.26 and 918.42

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Solution

The fourth proportional to 3,226.92, 4,840.26 and 918.42 is: 1,377.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,226.92 : 4,840.26 = 918.42 : x
  2. Step 2: Convert to fraction form
    3,226.92/4,840.26 = 918.42/x
  3. Step 3: Cross multiply
    3,226.92x = 4,840.26 × 918.42
  4. Step 4: Simplify right side
    3,226.92x = 4,445,391.59
  5. Step 5: Solve for x
    x = 4,445,391.59/3,226.92
  6. Step 6: Final answer
    x = 1,377.60

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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.