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Finding the Fourth Proportional to 1,058.67, 1,460.43 and 759.58

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Solution

The fourth proportional to 1,058.67, 1,460.43 and 759.58 is: 1,047.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058.67 : 1,460.43 = 759.58 : x
  2. Step 2: Convert to fraction form
    1,058.67/1,460.43 = 759.58/x
  3. Step 3: Cross multiply
    1,058.67x = 1,460.43 × 759.58
  4. Step 4: Simplify right side
    1,058.67x = 1,109,309.77
  5. Step 5: Solve for x
    x = 1,109,309.77/1,058.67
  6. Step 6: Final answer
    x = 1,047.83

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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.