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Finding the Fourth Proportional to 1,593.56, 2,390.24 and 668.63

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Solution

The fourth proportional to 1,593.56, 2,390.24 and 668.63 is: 1,002.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,593.56 : 2,390.24 = 668.63 : x
  2. Step 2: Convert to fraction form
    1,593.56/2,390.24 = 668.63/x
  3. Step 3: Cross multiply
    1,593.56x = 2,390.24 × 668.63
  4. Step 4: Simplify right side
    1,593.56x = 1,598,170.88
  5. Step 5: Solve for x
    x = 1,598,170.88/1,593.56
  6. Step 6: Final answer
    x = 1,002.90

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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.