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Finding the Fourth Proportional to 2,250.98, 3,377.28 and 790.36

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Solution

The fourth proportional to 2,250.98, 3,377.28 and 790.36 is: 1,185.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,250.98 : 3,377.28 = 790.36 : x
  2. Step 2: Convert to fraction form
    2,250.98/3,377.28 = 790.36/x
  3. Step 3: Cross multiply
    2,250.98x = 3,377.28 × 790.36
  4. Step 4: Simplify right side
    2,250.98x = 2,669,267.02
  5. Step 5: Solve for x
    x = 2,669,267.02/2,250.98
  6. Step 6: Final answer
    x = 1,185.82

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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.