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Finding the Fourth Proportional to 1,206.93, 1,810.62 and 796.41

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Solution

The fourth proportional to 1,206.93, 1,810.62 and 796.41 is: 1,194.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206.93 : 1,810.62 = 796.41 : x
  2. Step 2: Convert to fraction form
    1,206.93/1,810.62 = 796.41/x
  3. Step 3: Cross multiply
    1,206.93x = 1,810.62 × 796.41
  4. Step 4: Simplify right side
    1,206.93x = 1,441,995.87
  5. Step 5: Solve for x
    x = 1,441,995.87/1,206.93
  6. Step 6: Final answer
    x = 1,194.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.