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Finding the Fourth Proportional to 1,173.26, 1,759.24 and 480.41

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Solution

The fourth proportional to 1,173.26, 1,759.24 and 480.41 is: 720.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173.26 : 1,759.24 = 480.41 : x
  2. Step 2: Convert to fraction form
    1,173.26/1,759.24 = 480.41/x
  3. Step 3: Cross multiply
    1,173.26x = 1,759.24 × 480.41
  4. Step 4: Simplify right side
    1,173.26x = 845,156.49
  5. Step 5: Solve for x
    x = 845,156.49/1,173.26
  6. Step 6: Final answer
    x = 720.35

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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.