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Finding the Fourth Proportional to 2,303.73, 3,456.26 and 986.80

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Solution

The fourth proportional to 2,303.73, 3,456.26 and 986.80 is: 1,480.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,303.73 : 3,456.26 = 986.80 : x
  2. Step 2: Convert to fraction form
    2,303.73/3,456.26 = 986.80/x
  3. Step 3: Cross multiply
    2,303.73x = 3,456.26 × 986.80
  4. Step 4: Simplify right side
    2,303.73x = 3,410,637.37
  5. Step 5: Solve for x
    x = 3,410,637.37/2,303.73
  6. Step 6: Final answer
    x = 1,480.48

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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.