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Finding the Fourth Proportional to 1,168.22, 1,753 and 474.76

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Solution

The fourth proportional to 1,168.22, 1,753 and 474.76 is: 712.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.22 : 1,753 = 474.76 : x
  2. Step 2: Convert to fraction form
    1,168.22/1,753 = 474.76/x
  3. Step 3: Cross multiply
    1,168.22x = 1,753 × 474.76
  4. Step 4: Simplify right side
    1,168.22x = 832,254.28
  5. Step 5: Solve for x
    x = 832,254.28/1,168.22
  6. Step 6: Final answer
    x = 712.41

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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.