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Finding the Fourth Proportional to 1,096.15, 1,644.31 and 365.73

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Solution

The fourth proportional to 1,096.15, 1,644.31 and 365.73 is: 548.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,096.15 : 1,644.31 = 365.73 : x
  2. Step 2: Convert to fraction form
    1,096.15/1,644.31 = 365.73/x
  3. Step 3: Cross multiply
    1,096.15x = 1,644.31 × 365.73
  4. Step 4: Simplify right side
    1,096.15x = 601,370.53
  5. Step 5: Solve for x
    x = 601,370.53/1,096.15
  6. Step 6: Final answer
    x = 548.62

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Why These Related Problems?

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