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Finding the Fourth Proportional to 797.07, 1,099.69 and 482.46

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Solution

The fourth proportional to 797.07, 1,099.69 and 482.46 is: 665.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    797.07 : 1,099.69 = 482.46 : x
  2. Step 2: Convert to fraction form
    797.07/1,099.69 = 482.46/x
  3. Step 3: Cross multiply
    797.07x = 1,099.69 × 482.46
  4. Step 4: Simplify right side
    797.07x = 530,556.44
  5. Step 5: Solve for x
    x = 530,556.44/797.07
  6. Step 6: Final answer
    x = 665.63

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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.