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Finding the Fourth Proportional to 734, 1,100.94 and 186.18

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Solution

The fourth proportional to 734, 1,100.94 and 186.18 is: 279.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    734 : 1,100.94 = 186.18 : x
  2. Step 2: Convert to fraction form
    734/1,100.94 = 186.18/x
  3. Step 3: Cross multiply
    734x = 1,100.94 × 186.18
  4. Step 4: Simplify right side
    734x = 204,973.01
  5. Step 5: Solve for x
    x = 204,973.01/734
  6. Step 6: Final answer
    x = 279.25

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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.