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Finding the Fourth Proportional to 922.16, 1,268.22 and 733.43

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Solution

The fourth proportional to 922.16, 1,268.22 and 733.43 is: 1,008.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    922.16 : 1,268.22 = 733.43 : x
  2. Step 2: Convert to fraction form
    922.16/1,268.22 = 733.43/x
  3. Step 3: Cross multiply
    922.16x = 1,268.22 × 733.43
  4. Step 4: Simplify right side
    922.16x = 930,150.59
  5. Step 5: Solve for x
    x = 930,150.59/922.16
  6. Step 6: Final answer
    x = 1,008.67

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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.