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Finding the Fourth Proportional to 1,260.24, 1,738.57 and 736.04

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Solution

The fourth proportional to 1,260.24, 1,738.57 and 736.04 is: 1,015.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.24 : 1,738.57 = 736.04 : x
  2. Step 2: Convert to fraction form
    1,260.24/1,738.57 = 736.04/x
  3. Step 3: Cross multiply
    1,260.24x = 1,738.57 × 736.04
  4. Step 4: Simplify right side
    1,260.24x = 1,279,657.06
  5. Step 5: Solve for x
    x = 1,279,657.06/1,260.24
  6. Step 6: Final answer
    x = 1,015.41

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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.