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Finding the Fourth Proportional to 1,192.44, 1,636.79 and 1,058.52

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Solution

The fourth proportional to 1,192.44, 1,636.79 and 1,058.52 is: 1,452.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.44 : 1,636.79 = 1,058.52 : x
  2. Step 2: Convert to fraction form
    1,192.44/1,636.79 = 1,058.52/x
  3. Step 3: Cross multiply
    1,192.44x = 1,636.79 × 1,058.52
  4. Step 4: Simplify right side
    1,192.44x = 1,732,574.95
  5. Step 5: Solve for x
    x = 1,732,574.95/1,192.44
  6. Step 6: Final answer
    x = 1,452.97

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.