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Finding the Fourth Proportional to 219,911.30, 329,866.95 and 219,911.30

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Solution

The fourth proportional to 219,911.30, 329,866.95 and 219,911.30 is: 329,866.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,911.30 : 329,866.95 = 219,911.30 : x
  2. Step 2: Convert to fraction form
    219,911.30/329,866.95 = 219,911.30/x
  3. Step 3: Cross multiply
    219,911.30x = 329,866.95 × 219,911.30
  4. Step 4: Simplify right side
    219,911.30x = 72,541,469,801.54
  5. Step 5: Solve for x
    x = 72,541,469,801.54/219,911.30
  6. Step 6: Final answer
    x = 329,866.95

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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.