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Finding the Fourth Proportional to 1,058.82, 1,460.48 and 727.43

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Solution

The fourth proportional to 1,058.82, 1,460.48 and 727.43 is: 1,003.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058.82 : 1,460.48 = 727.43 : x
  2. Step 2: Convert to fraction form
    1,058.82/1,460.48 = 727.43/x
  3. Step 3: Cross multiply
    1,058.82x = 1,460.48 × 727.43
  4. Step 4: Simplify right side
    1,058.82x = 1,062,386.03
  5. Step 5: Solve for x
    x = 1,062,386.03/1,058.82
  6. Step 6: Final answer
    x = 1,003.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.