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Finding the Fourth Proportional to 221,963.70, 332,969.85 and 214,965.30

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Solution

The fourth proportional to 221,963.70, 332,969.85 and 214,965.30 is: 322,471.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,963.70 : 332,969.85 = 214,965.30 : x
  2. Step 2: Convert to fraction form
    221,963.70/332,969.85 = 214,965.30/x
  3. Step 3: Cross multiply
    221,963.70x = 332,969.85 × 214,965.30
  4. Step 4: Simplify right side
    221,963.70x = 71,576,963,696.21
  5. Step 5: Solve for x
    x = 71,576,963,696.21/221,963.70
  6. Step 6: Final answer
    x = 322,471.48

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1.5x scale

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.