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Finding the Fourth Proportional to 1,656.11, 2,286.02 and 993.33

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Solution

The fourth proportional to 1,656.11, 2,286.02 and 993.33 is: 1,371.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,656.11 : 2,286.02 = 993.33 : x
  2. Step 2: Convert to fraction form
    1,656.11/2,286.02 = 993.33/x
  3. Step 3: Cross multiply
    1,656.11x = 2,286.02 × 993.33
  4. Step 4: Simplify right side
    1,656.11x = 2,270,774.73
  5. Step 5: Solve for x
    x = 2,270,774.73/1,656.11
  6. Step 6: Final answer
    x = 1,371.15

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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.