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Finding the Fourth Proportional to 1,768.95, 2,441.06 and 982.98

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Solution

The fourth proportional to 1,768.95, 2,441.06 and 982.98 is: 1,356.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.95 : 2,441.06 = 982.98 : x
  2. Step 2: Convert to fraction form
    1,768.95/2,441.06 = 982.98/x
  3. Step 3: Cross multiply
    1,768.95x = 2,441.06 × 982.98
  4. Step 4: Simplify right side
    1,768.95x = 2,399,496.04
  5. Step 5: Solve for x
    x = 2,399,496.04/1,768.95
  6. Step 6: Final answer
    x = 1,356.46

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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.