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Finding the Fourth Proportional to 1,184.22, 1,773.90 and 695.79

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Solution

The fourth proportional to 1,184.22, 1,773.90 and 695.79 is: 1,042.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184.22 : 1,773.90 = 695.79 : x
  2. Step 2: Convert to fraction form
    1,184.22/1,773.90 = 695.79/x
  3. Step 3: Cross multiply
    1,184.22x = 1,773.90 × 695.79
  4. Step 4: Simplify right side
    1,184.22x = 1,234,261.88
  5. Step 5: Solve for x
    x = 1,234,261.88/1,184.22
  6. Step 6: Final answer
    x = 1,042.26

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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.