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Finding the Fourth Proportional to 1,179.46, 1,776.10 and 1,027.21

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Solution

The fourth proportional to 1,179.46, 1,776.10 and 1,027.21 is: 1,546.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179.46 : 1,776.10 = 1,027.21 : x
  2. Step 2: Convert to fraction form
    1,179.46/1,776.10 = 1,027.21/x
  3. Step 3: Cross multiply
    1,179.46x = 1,776.10 × 1,027.21
  4. Step 4: Simplify right side
    1,179.46x = 1,824,423.82
  5. Step 5: Solve for x
    x = 1,824,423.82/1,179.46
  6. Step 6: Final answer
    x = 1,546.83

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.