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Finding the Fourth Proportional to 269,569.70, 404,354.55 and 217,081.70

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Solution

The fourth proportional to 269,569.70, 404,354.55 and 217,081.70 is: 325,622.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,569.70 : 404,354.55 = 217,081.70 : x
  2. Step 2: Convert to fraction form
    269,569.70/404,354.55 = 217,081.70/x
  3. Step 3: Cross multiply
    269,569.70x = 404,354.55 × 217,081.70
  4. Step 4: Simplify right side
    269,569.70x = 87,777,973,116.74
  5. Step 5: Solve for x
    x = 87,777,973,116.74/269,569.70
  6. Step 6: Final answer
    x = 325,622.55

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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.