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Finding the Fourth Proportional to 1,474.97, 2,211.95 and 500.85

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Solution

The fourth proportional to 1,474.97, 2,211.95 and 500.85 is: 751.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.97 : 2,211.95 = 500.85 : x
  2. Step 2: Convert to fraction form
    1,474.97/2,211.95 = 500.85/x
  3. Step 3: Cross multiply
    1,474.97x = 2,211.95 × 500.85
  4. Step 4: Simplify right side
    1,474.97x = 1,107,844.10
  5. Step 5: Solve for x
    x = 1,107,844.10/1,474.97
  6. Step 6: Final answer
    x = 751.10

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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.