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Finding the Fourth Proportional to 2,399.04, 3,598.08 and 667.68

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Solution

The fourth proportional to 2,399.04, 3,598.08 and 667.68 is: 1,001.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,399.04 : 3,598.08 = 667.68 : x
  2. Step 2: Convert to fraction form
    2,399.04/3,598.08 = 667.68/x
  3. Step 3: Cross multiply
    2,399.04x = 3,598.08 × 667.68
  4. Step 4: Simplify right side
    2,399.04x = 2,402,366.05
  5. Step 5: Solve for x
    x = 2,402,366.05/2,399.04
  6. Step 6: Final answer
    x = 1,001.39

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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.