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Finding the Fourth Proportional to 1,173.18, 1,760.46 and 625.37

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Solution

The fourth proportional to 1,173.18, 1,760.46 and 625.37 is: 938.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173.18 : 1,760.46 = 625.37 : x
  2. Step 2: Convert to fraction form
    1,173.18/1,760.46 = 625.37/x
  3. Step 3: Cross multiply
    1,173.18x = 1,760.46 × 625.37
  4. Step 4: Simplify right side
    1,173.18x = 1,100,930.07
  5. Step 5: Solve for x
    x = 1,100,930.07/1,173.18
  6. Step 6: Final answer
    x = 938.42

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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.