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Finding the Fourth Proportional to 1,168.02, 1,750.35 and 674.41

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Solution

The fourth proportional to 1,168.02, 1,750.35 and 674.41 is: 1,010.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.02 : 1,750.35 = 674.41 : x
  2. Step 2: Convert to fraction form
    1,168.02/1,750.35 = 674.41/x
  3. Step 3: Cross multiply
    1,168.02x = 1,750.35 × 674.41
  4. Step 4: Simplify right side
    1,168.02x = 1,180,453.54
  5. Step 5: Solve for x
    x = 1,180,453.54/1,168.02
  6. Step 6: Final answer
    x = 1,010.64

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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.