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Finding the Fourth Proportional to 1,174, 1,759.44 and 914.32

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Solution

The fourth proportional to 1,174, 1,759.44 and 914.32 is: 1,370.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174 : 1,759.44 = 914.32 : x
  2. Step 2: Convert to fraction form
    1,174/1,759.44 = 914.32/x
  3. Step 3: Cross multiply
    1,174x = 1,759.44 × 914.32
  4. Step 4: Simplify right side
    1,174x = 1,608,691.18
  5. Step 5: Solve for x
    x = 1,608,691.18/1,174
  6. Step 6: Final answer
    x = 1,370.27

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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.