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Finding the Fourth Proportional to 269,404.80, 404,107.20 and 216,916.80

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Solution

The fourth proportional to 269,404.80, 404,107.20 and 216,916.80 is: 325,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,404.80 : 404,107.20 = 216,916.80 : x
  2. Step 2: Convert to fraction form
    269,404.80/404,107.20 = 216,916.80/x
  3. Step 3: Cross multiply
    269,404.80x = 404,107.20 × 216,916.80
  4. Step 4: Simplify right side
    269,404.80x = 87,657,640,680.96
  5. Step 5: Solve for x
    x = 87,657,640,680.96/269,404.80
  6. Step 6: Final answer
    x = 325,375.20

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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.