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Finding the Fourth Proportional to 1,597.28, 2,396.15 and 672.26

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Solution

The fourth proportional to 1,597.28, 2,396.15 and 672.26 is: 1,008.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,597.28 : 2,396.15 = 672.26 : x
  2. Step 2: Convert to fraction form
    1,597.28/2,396.15 = 672.26/x
  3. Step 3: Cross multiply
    1,597.28x = 2,396.15 × 672.26
  4. Step 4: Simplify right side
    1,597.28x = 1,610,843.47
  5. Step 5: Solve for x
    x = 1,610,843.47/1,597.28
  6. Step 6: Final answer
    x = 1,008.49

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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.