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Finding the Fourth Proportional to 412,359.35, 617,488.99 and 271,691.51

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Solution

The fourth proportional to 412,359.35, 617,488.99 and 271,691.51 is: 406,845.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,359.35 : 617,488.99 = 271,691.51 : x
  2. Step 2: Convert to fraction form
    412,359.35/617,488.99 = 271,691.51/x
  3. Step 3: Cross multiply
    412,359.35x = 617,488.99 × 271,691.51
  4. Step 4: Simplify right side
    412,359.35x = 167,766,512,334.80
  5. Step 5: Solve for x
    x = 167,766,512,334.80/412,359.35
  6. Step 6: Final answer
    x = 406,845.42

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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.