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Finding the Fourth Proportional to 1,314.52, 1,814.16 and 982.37

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Solution

The fourth proportional to 1,314.52, 1,814.16 and 982.37 is: 1,355.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314.52 : 1,814.16 = 982.37 : x
  2. Step 2: Convert to fraction form
    1,314.52/1,814.16 = 982.37/x
  3. Step 3: Cross multiply
    1,314.52x = 1,814.16 × 982.37
  4. Step 4: Simplify right side
    1,314.52x = 1,782,177.78
  5. Step 5: Solve for x
    x = 1,782,177.78/1,314.52
  6. Step 6: Final answer
    x = 1,355.76

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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.