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Finding the Fourth Proportional to 795.22, 1,097.45 and 696.80

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Solution

The fourth proportional to 795.22, 1,097.45 and 696.80 is: 961.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.22 : 1,097.45 = 696.80 : x
  2. Step 2: Convert to fraction form
    795.22/1,097.45 = 696.80/x
  3. Step 3: Cross multiply
    795.22x = 1,097.45 × 696.80
  4. Step 4: Simplify right side
    795.22x = 764,705.03
  5. Step 5: Solve for x
    x = 764,705.03/795.22
  6. Step 6: Final answer
    x = 961.63

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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.