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Finding the Fourth Proportional to 1,058.84, 1,461.01 and 610.61

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Solution

The fourth proportional to 1,058.84, 1,461.01 and 610.61 is: 842.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058.84 : 1,461.01 = 610.61 : x
  2. Step 2: Convert to fraction form
    1,058.84/1,461.01 = 610.61/x
  3. Step 3: Cross multiply
    1,058.84x = 1,461.01 × 610.61
  4. Step 4: Simplify right side
    1,058.84x = 892,107.32
  5. Step 5: Solve for x
    x = 892,107.32/1,058.84
  6. Step 6: Final answer
    x = 842.53

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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.