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Finding the Fourth Proportional to 2,399.44, 3,599.08 and 668.08

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Solution

The fourth proportional to 2,399.44, 3,599.08 and 668.08 is: 1,002.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,399.44 : 3,599.08 = 668.08 : x
  2. Step 2: Convert to fraction form
    2,399.44/3,599.08 = 668.08/x
  3. Step 3: Cross multiply
    2,399.44x = 3,599.08 × 668.08
  4. Step 4: Simplify right side
    2,399.44x = 2,404,473.37
  5. Step 5: Solve for x
    x = 2,404,473.37/2,399.44
  6. Step 6: Final answer
    x = 1,002.10

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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.