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Finding the Fourth Proportional to 1,180.44, 1,770.86 and 1,058.00

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Solution

The fourth proportional to 1,180.44, 1,770.86 and 1,058.00 is: 1,587.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180.44 : 1,770.86 = 1,058.00 : x
  2. Step 2: Convert to fraction form
    1,180.44/1,770.86 = 1,058.00/x
  3. Step 3: Cross multiply
    1,180.44x = 1,770.86 × 1,058.00
  4. Step 4: Simplify right side
    1,180.44x = 1,873,563.67
  5. Step 5: Solve for x
    x = 1,873,563.67/1,180.44
  6. Step 6: Final answer
    x = 1,587.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.