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Finding the Fourth Proportional to 1,745.16, 2,616.67 and 704.31

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Solution

The fourth proportional to 1,745.16, 2,616.67 and 704.31 is: 1,056.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745.16 : 2,616.67 = 704.31 : x
  2. Step 2: Convert to fraction form
    1,745.16/2,616.67 = 704.31/x
  3. Step 3: Cross multiply
    1,745.16x = 2,616.67 × 704.31
  4. Step 4: Simplify right side
    1,745.16x = 1,842,937.92
  5. Step 5: Solve for x
    x = 1,842,937.92/1,745.16
  6. Step 6: Final answer
    x = 1,056.03

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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.