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Finding the Fourth Proportional to 2,410.62, 3,615.93 and 679.25

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Solution

The fourth proportional to 2,410.62, 3,615.93 and 679.25 is: 1,018.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,410.62 : 3,615.93 = 679.25 : x
  2. Step 2: Convert to fraction form
    2,410.62/3,615.93 = 679.25/x
  3. Step 3: Cross multiply
    2,410.62x = 3,615.93 × 679.25
  4. Step 4: Simplify right side
    2,410.62x = 2,456,102.37
  5. Step 5: Solve for x
    x = 2,456,102.37/2,410.62
  6. Step 6: Final answer
    x = 1,018.87

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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.