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Finding the Fourth Proportional to 2,055.69, 3,083.33 and 668.97

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Solution

The fourth proportional to 2,055.69, 3,083.33 and 668.97 is: 1,003.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,055.69 : 3,083.33 = 668.97 : x
  2. Step 2: Convert to fraction form
    2,055.69/3,083.33 = 668.97/x
  3. Step 3: Cross multiply
    2,055.69x = 3,083.33 × 668.97
  4. Step 4: Simplify right side
    2,055.69x = 2,062,656.94
  5. Step 5: Solve for x
    x = 2,062,656.94/2,055.69
  6. Step 6: Final answer
    x = 1,003.39

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1.5x scale

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.