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Finding the Fourth Proportional to 1,939.25, 2,676.22 and 1,055.00

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Solution

The fourth proportional to 1,939.25, 2,676.22 and 1,055.00 is: 1,455.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.25 : 2,676.22 = 1,055.00 : x
  2. Step 2: Convert to fraction form
    1,939.25/2,676.22 = 1,055.00/x
  3. Step 3: Cross multiply
    1,939.25x = 2,676.22 × 1,055.00
  4. Step 4: Simplify right side
    1,939.25x = 2,823,396.08
  5. Step 5: Solve for x
    x = 2,823,396.08/1,939.25
  6. Step 6: Final answer
    x = 1,455.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.