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Finding the Fourth Proportional to 846.74, 1,168.18 and 626.22

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Solution

The fourth proportional to 846.74, 1,168.18 and 626.22 is: 863.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    846.74 : 1,168.18 = 626.22 : x
  2. Step 2: Convert to fraction form
    846.74/1,168.18 = 626.22/x
  3. Step 3: Cross multiply
    846.74x = 1,168.18 × 626.22
  4. Step 4: Simplify right side
    846.74x = 731,537.68
  5. Step 5: Solve for x
    x = 731,537.68/846.74
  6. Step 6: Final answer
    x = 863.95

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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.