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Finding the Fourth Proportional to 2,997.41, 4,495.91 and 805.95

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Solution

The fourth proportional to 2,997.41, 4,495.91 and 805.95 is: 1,208.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,997.41 : 4,495.91 = 805.95 : x
  2. Step 2: Convert to fraction form
    2,997.41/4,495.91 = 805.95/x
  3. Step 3: Cross multiply
    2,997.41x = 4,495.91 × 805.95
  4. Step 4: Simplify right side
    2,997.41x = 3,623,474.63
  5. Step 5: Solve for x
    x = 3,623,474.63/2,997.41
  6. Step 6: Final answer
    x = 1,208.87

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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.