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Finding the Fourth Proportional to 1,196.54, 1,651.41 and 699.47

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Solution

The fourth proportional to 1,196.54, 1,651.41 and 699.47 is: 965.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196.54 : 1,651.41 = 699.47 : x
  2. Step 2: Convert to fraction form
    1,196.54/1,651.41 = 699.47/x
  3. Step 3: Cross multiply
    1,196.54x = 1,651.41 × 699.47
  4. Step 4: Simplify right side
    1,196.54x = 1,155,103.50
  5. Step 5: Solve for x
    x = 1,155,103.50/1,196.54
  6. Step 6: Final answer
    x = 965.37

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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.