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Finding the Fourth Proportional to 2,183.95, 3,276.65 and 703.40

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Solution

The fourth proportional to 2,183.95, 3,276.65 and 703.40 is: 1,055.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.95 : 3,276.65 = 703.40 : x
  2. Step 2: Convert to fraction form
    2,183.95/3,276.65 = 703.40/x
  3. Step 3: Cross multiply
    2,183.95x = 3,276.65 × 703.40
  4. Step 4: Simplify right side
    2,183.95x = 2,304,795.61
  5. Step 5: Solve for x
    x = 2,304,795.61/2,183.95
  6. Step 6: Final answer
    x = 1,055.33

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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.