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Finding the Fourth Proportional to 1,463.88, 2,192.09 and 845.69

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Solution

The fourth proportional to 1,463.88, 2,192.09 and 845.69 is: 1,266.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,463.88 : 2,192.09 = 845.69 : x
  2. Step 2: Convert to fraction form
    1,463.88/2,192.09 = 845.69/x
  3. Step 3: Cross multiply
    1,463.88x = 2,192.09 × 845.69
  4. Step 4: Simplify right side
    1,463.88x = 1,853,829.84
  5. Step 5: Solve for x
    x = 1,853,829.84/1,463.88
  6. Step 6: Final answer
    x = 1,266.38

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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.