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Finding the Fourth Proportional to 1,173.94, 1,760.92 and 308.25

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Solution

The fourth proportional to 1,173.94, 1,760.92 and 308.25 is: 462.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173.94 : 1,760.92 = 308.25 : x
  2. Step 2: Convert to fraction form
    1,173.94/1,760.92 = 308.25/x
  3. Step 3: Cross multiply
    1,173.94x = 1,760.92 × 308.25
  4. Step 4: Simplify right side
    1,173.94x = 542,802.82
  5. Step 5: Solve for x
    x = 542,802.82/1,173.94
  6. Step 6: Final answer
    x = 462.38

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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.