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Finding the Fourth Proportional to 1,601.88, 2,402.97 and 627.75

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Solution

The fourth proportional to 1,601.88, 2,402.97 and 627.75 is: 941.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,601.88 : 2,402.97 = 627.75 : x
  2. Step 2: Convert to fraction form
    1,601.88/2,402.97 = 627.75/x
  3. Step 3: Cross multiply
    1,601.88x = 2,402.97 × 627.75
  4. Step 4: Simplify right side
    1,601.88x = 1,508,462.06
  5. Step 5: Solve for x
    x = 1,508,462.06/1,601.88
  6. Step 6: Final answer
    x = 941.68

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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.