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Finding the Fourth Proportional to 1,198.34, 1,796.86 and 736.32

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Solution

The fourth proportional to 1,198.34, 1,796.86 and 736.32 is: 1,104.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198.34 : 1,796.86 = 736.32 : x
  2. Step 2: Convert to fraction form
    1,198.34/1,796.86 = 736.32/x
  3. Step 3: Cross multiply
    1,198.34x = 1,796.86 × 736.32
  4. Step 4: Simplify right side
    1,198.34x = 1,323,063.96
  5. Step 5: Solve for x
    x = 1,323,063.96/1,198.34
  6. Step 6: Final answer
    x = 1,104.08

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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.