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Finding the Fourth Proportional to 376,661.70, 519,770.18 and 206,895.83

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Solution

The fourth proportional to 376,661.70, 519,770.18 and 206,895.83 is: 285,503.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,661.70 : 519,770.18 = 206,895.83 : x
  2. Step 2: Convert to fraction form
    376,661.70/519,770.18 = 206,895.83/x
  3. Step 3: Cross multiply
    376,661.70x = 519,770.18 × 206,895.83
  4. Step 4: Simplify right side
    376,661.70x = 107,538,280,718.74
  5. Step 5: Solve for x
    x = 107,538,280,718.74/376,661.70
  6. Step 6: Final answer
    x = 285,503.62

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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.