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Finding the Fourth Proportional to 1,058.26, 1,460.91 and 704.77

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Solution

The fourth proportional to 1,058.26, 1,460.91 and 704.77 is: 972.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058.26 : 1,460.91 = 704.77 : x
  2. Step 2: Convert to fraction form
    1,058.26/1,460.91 = 704.77/x
  3. Step 3: Cross multiply
    1,058.26x = 1,460.91 × 704.77
  4. Step 4: Simplify right side
    1,058.26x = 1,029,605.54
  5. Step 5: Solve for x
    x = 1,029,605.54/1,058.26
  6. Step 6: Final answer
    x = 972.92

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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.