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Finding the Fourth Proportional to 1,745.46, 2,618.16 and 705.44

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Solution

The fourth proportional to 1,745.46, 2,618.16 and 705.44 is: 1,058.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745.46 : 2,618.16 = 705.44 : x
  2. Step 2: Convert to fraction form
    1,745.46/2,618.16 = 705.44/x
  3. Step 3: Cross multiply
    1,745.46x = 2,618.16 × 705.44
  4. Step 4: Simplify right side
    1,745.46x = 1,846,956.14
  5. Step 5: Solve for x
    x = 1,846,956.14/1,745.46
  6. Step 6: Final answer
    x = 1,058.15

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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.