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Finding the Fourth Proportional to 511,371.98, 705,694.11 and 285,012.62

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Solution

The fourth proportional to 511,371.98, 705,694.11 and 285,012.62 is: 393,317.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,371.98 : 705,694.11 = 285,012.62 : x
  2. Step 2: Convert to fraction form
    511,371.98/705,694.11 = 285,012.62/x
  3. Step 3: Cross multiply
    511,371.98x = 705,694.11 × 285,012.62
  4. Step 4: Simplify right side
    511,371.98x = 201,131,727,209.67
  5. Step 5: Solve for x
    x = 201,131,727,209.67/511,371.98
  6. Step 6: Final answer
    x = 393,317.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.