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Finding the Fourth Proportional to 682,434.62, 941,763 and 376,514.63

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Solution

The fourth proportional to 682,434.62, 941,763 and 376,514.63 is: 519,591.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,434.62 : 941,763 = 376,514.63 : x
  2. Step 2: Convert to fraction form
    682,434.62/941,763 = 376,514.63/x
  3. Step 3: Cross multiply
    682,434.62x = 941,763 × 376,514.63
  4. Step 4: Simplify right side
    682,434.62x = 354,587,542,783.88
  5. Step 5: Solve for x
    x = 354,587,542,783.88/682,434.62
  6. Step 6: Final answer
    x = 519,591.97

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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.