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Finding the Fourth Proportional to 2,396.94, 3,308.09 and 1,349.21

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Solution

The fourth proportional to 2,396.94, 3,308.09 and 1,349.21 is: 1,862.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,396.94 : 3,308.09 = 1,349.21 : x
  2. Step 2: Convert to fraction form
    2,396.94/3,308.09 = 1,349.21/x
  3. Step 3: Cross multiply
    2,396.94x = 3,308.09 × 1,349.21
  4. Step 4: Simplify right side
    2,396.94x = 4,463,284.82
  5. Step 5: Solve for x
    x = 4,463,284.82/2,396.94
  6. Step 6: Final answer
    x = 1,862.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.