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Finding the Fourth Proportional to 1,168.80, 1,752 and 475.84

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Solution

The fourth proportional to 1,168.80, 1,752 and 475.84 is: 713.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.80 : 1,752 = 475.84 : x
  2. Step 2: Convert to fraction form
    1,168.80/1,752 = 475.84/x
  3. Step 3: Cross multiply
    1,168.80x = 1,752 × 475.84
  4. Step 4: Simplify right side
    1,168.80x = 833,671.68
  5. Step 5: Solve for x
    x = 833,671.68/1,168.80
  6. Step 6: Final answer
    x = 713.27

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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.