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Finding the Fourth Proportional to 1,167.98, 1,749.67 and 704.39

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Solution

The fourth proportional to 1,167.98, 1,749.67 and 704.39 is: 1,055.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167.98 : 1,749.67 = 704.39 : x
  2. Step 2: Convert to fraction form
    1,167.98/1,749.67 = 704.39/x
  3. Step 3: Cross multiply
    1,167.98x = 1,749.67 × 704.39
  4. Step 4: Simplify right side
    1,167.98x = 1,232,439.54
  5. Step 5: Solve for x
    x = 1,232,439.54/1,167.98
  6. Step 6: Final answer
    x = 1,055.19

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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.