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Finding the Fourth Proportional to 1,544.88, 2,317.44 and 679.04

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Solution

The fourth proportional to 1,544.88, 2,317.44 and 679.04 is: 1,018.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,544.88 : 2,317.44 = 679.04 : x
  2. Step 2: Convert to fraction form
    1,544.88/2,317.44 = 679.04/x
  3. Step 3: Cross multiply
    1,544.88x = 2,317.44 × 679.04
  4. Step 4: Simplify right side
    1,544.88x = 1,573,634.46
  5. Step 5: Solve for x
    x = 1,573,634.46/1,544.88
  6. Step 6: Final answer
    x = 1,018.61

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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.