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Finding the Fourth Proportional to 682,398.15, 941,704.19 and 376,487.43

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Solution

The fourth proportional to 682,398.15, 941,704.19 and 376,487.43 is: 519,549.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,398.15 : 941,704.19 = 376,487.43 : x
  2. Step 2: Convert to fraction form
    682,398.15/941,704.19 = 376,487.43/x
  3. Step 3: Cross multiply
    682,398.15x = 941,704.19 × 376,487.43
  4. Step 4: Simplify right side
    682,398.15x = 354,539,785,134.20
  5. Step 5: Solve for x
    x = 354,539,785,134.20/682,398.15
  6. Step 6: Final answer
    x = 519,549.75

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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.