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Finding the Fourth Proportional to 794.82, 1,097.40 and 484.50

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Solution

The fourth proportional to 794.82, 1,097.40 and 484.50 is: 668.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.82 : 1,097.40 = 484.50 : x
  2. Step 2: Convert to fraction form
    794.82/1,097.40 = 484.50/x
  3. Step 3: Cross multiply
    794.82x = 1,097.40 × 484.50
  4. Step 4: Simplify right side
    794.82x = 531,690.30
  5. Step 5: Solve for x
    x = 531,690.30/794.82
  6. Step 6: Final answer
    x = 668.94

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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.