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Finding the Fourth Proportional to 792.06, 1,091.24 and 626.22

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Solution

The fourth proportional to 792.06, 1,091.24 and 626.22 is: 862.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.06 : 1,091.24 = 626.22 : x
  2. Step 2: Convert to fraction form
    792.06/1,091.24 = 626.22/x
  3. Step 3: Cross multiply
    792.06x = 1,091.24 × 626.22
  4. Step 4: Simplify right side
    792.06x = 683,356.31
  5. Step 5: Solve for x
    x = 683,356.31/792.06
  6. Step 6: Final answer
    x = 862.76

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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.