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Finding the Fourth Proportional to 1,796.97, 2,479.78 and 1,011.03

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Solution

The fourth proportional to 1,796.97, 2,479.78 and 1,011.03 is: 1,395.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,796.97 : 2,479.78 = 1,011.03 : x
  2. Step 2: Convert to fraction form
    1,796.97/2,479.78 = 1,011.03/x
  3. Step 3: Cross multiply
    1,796.97x = 2,479.78 × 1,011.03
  4. Step 4: Simplify right side
    1,796.97x = 2,507,131.97
  5. Step 5: Solve for x
    x = 2,507,131.97/1,796.97
  6. Step 6: Final answer
    x = 1,395.20

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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.