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Finding the Fourth Proportional to 1,183.59, 1,774.31 and 922.14

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Solution

The fourth proportional to 1,183.59, 1,774.31 and 922.14 is: 1,382.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183.59 : 1,774.31 = 922.14 : x
  2. Step 2: Convert to fraction form
    1,183.59/1,774.31 = 922.14/x
  3. Step 3: Cross multiply
    1,183.59x = 1,774.31 × 922.14
  4. Step 4: Simplify right side
    1,183.59x = 1,636,157.61
  5. Step 5: Solve for x
    x = 1,636,157.61/1,183.59
  6. Step 6: Final answer
    x = 1,382.37

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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.