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Finding the Fourth Proportional to 376,335.90, 519,349.43 and 206,585.50

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Solution

The fourth proportional to 376,335.90, 519,349.43 and 206,585.50 is: 285,091.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,335.90 : 519,349.43 = 206,585.50 : x
  2. Step 2: Convert to fraction form
    376,335.90/519,349.43 = 206,585.50/x
  3. Step 3: Cross multiply
    376,335.90x = 519,349.43 × 206,585.50
  4. Step 4: Simplify right side
    376,335.90x = 107,290,061,671.27
  5. Step 5: Solve for x
    x = 107,290,061,671.27/376,335.90
  6. Step 6: Final answer
    x = 285,091.22

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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.