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Finding the Fourth Proportional to 1,173.98, 1,760.93 and 480.47

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Solution

The fourth proportional to 1,173.98, 1,760.93 and 480.47 is: 720.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173.98 : 1,760.93 = 480.47 : x
  2. Step 2: Convert to fraction form
    1,173.98/1,760.93 = 480.47/x
  3. Step 3: Cross multiply
    1,173.98x = 1,760.93 × 480.47
  4. Step 4: Simplify right side
    1,173.98x = 846,064.63
  5. Step 5: Solve for x
    x = 846,064.63/1,173.98
  6. Step 6: Final answer
    x = 720.68

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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.