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Finding the Fourth Proportional to 398,682.87, 598,024.31 and 273,644.79

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Solution

The fourth proportional to 398,682.87, 598,024.31 and 273,644.79 is: 410,467.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,682.87 : 598,024.31 = 273,644.79 : x
  2. Step 2: Convert to fraction form
    398,682.87/598,024.31 = 273,644.79/x
  3. Step 3: Cross multiply
    398,682.87x = 598,024.31 × 273,644.79
  4. Step 4: Simplify right side
    398,682.87x = 163,646,235,356.62
  5. Step 5: Solve for x
    x = 163,646,235,356.62/398,682.87
  6. Step 6: Final answer
    x = 410,467.19

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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.