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Finding the Fourth Proportional to 951.77, 1,427.67 and 537.95

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Solution

The fourth proportional to 951.77, 1,427.67 and 537.95 is: 806.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.77 : 1,427.67 = 537.95 : x
  2. Step 2: Convert to fraction form
    951.77/1,427.67 = 537.95/x
  3. Step 3: Cross multiply
    951.77x = 1,427.67 × 537.95
  4. Step 4: Simplify right side
    951.77x = 768,007.94
  5. Step 5: Solve for x
    x = 768,007.94/951.77
  6. Step 6: Final answer
    x = 806.93

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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.