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Finding the Fourth Proportional to 667,092.50, 999,809.31 and 292,738.58

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Solution

The fourth proportional to 667,092.50, 999,809.31 and 292,738.58 is: 438,743.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,092.50 : 999,809.31 = 292,738.58 : x
  2. Step 2: Convert to fraction form
    667,092.50/999,809.31 = 292,738.58/x
  3. Step 3: Cross multiply
    667,092.50x = 999,809.31 × 292,738.58
  4. Step 4: Simplify right side
    667,092.50x = 292,682,757,680.18
  5. Step 5: Solve for x
    x = 292,682,757,680.18/667,092.50
  6. Step 6: Final answer
    x = 438,743.89

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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.