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Finding the Fourth Proportional to 1,195.90, 1,650.93 and 754.48

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Solution

The fourth proportional to 1,195.90, 1,650.93 and 754.48 is: 1,041.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195.90 : 1,650.93 = 754.48 : x
  2. Step 2: Convert to fraction form
    1,195.90/1,650.93 = 754.48/x
  3. Step 3: Cross multiply
    1,195.90x = 1,650.93 × 754.48
  4. Step 4: Simplify right side
    1,195.90x = 1,245,593.67
  5. Step 5: Solve for x
    x = 1,245,593.67/1,195.90
  6. Step 6: Final answer
    x = 1,041.55

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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.