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Finding the Fourth Proportional to 1,052.20, 1,450.52 and 736.49

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Solution

The fourth proportional to 1,052.20, 1,450.52 and 736.49 is: 1,015.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,052.20 : 1,450.52 = 736.49 : x
  2. Step 2: Convert to fraction form
    1,052.20/1,450.52 = 736.49/x
  3. Step 3: Cross multiply
    1,052.20x = 1,450.52 × 736.49
  4. Step 4: Simplify right side
    1,052.20x = 1,068,293.47
  5. Step 5: Solve for x
    x = 1,068,293.47/1,052.20
  6. Step 6: Final answer
    x = 1,015.30

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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.