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Finding the Fourth Proportional to 1,233.18, 1,702.05 and 736.11

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Solution

The fourth proportional to 1,233.18, 1,702.05 and 736.11 is: 1,015.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,233.18 : 1,702.05 = 736.11 : x
  2. Step 2: Convert to fraction form
    1,233.18/1,702.05 = 736.11/x
  3. Step 3: Cross multiply
    1,233.18x = 1,702.05 × 736.11
  4. Step 4: Simplify right side
    1,233.18x = 1,252,896.03
  5. Step 5: Solve for x
    x = 1,252,896.03/1,233.18
  6. Step 6: Final answer
    x = 1,015.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.