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Finding the Fourth Proportional to 269,210.20, 403,469.70 and 206,570.20

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Solution

The fourth proportional to 269,210.20, 403,469.70 and 206,570.20 is: 309,590.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,210.20 : 403,469.70 = 206,570.20 : x
  2. Step 2: Convert to fraction form
    269,210.20/403,469.70 = 206,570.20/x
  3. Step 3: Cross multiply
    269,210.20x = 403,469.70 × 206,570.20
  4. Step 4: Simplify right side
    269,210.20x = 83,344,816,622.94
  5. Step 5: Solve for x
    x = 83,344,816,622.94/269,210.20
  6. Step 6: Final answer
    x = 309,590.11

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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.