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Finding the Fourth Proportional to 376,417.05, 519,456.40 and 206,662.11

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Solution

The fourth proportional to 376,417.05, 519,456.40 and 206,662.11 is: 285,194.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,417.05 : 519,456.40 = 206,662.11 : x
  2. Step 2: Convert to fraction form
    376,417.05/519,456.40 = 206,662.11/x
  3. Step 3: Cross multiply
    376,417.05x = 519,456.40 × 206,662.11
  4. Step 4: Simplify right side
    376,417.05x = 107,351,954,643.69
  5. Step 5: Solve for x
    x = 107,351,954,643.69/376,417.05
  6. Step 6: Final answer
    x = 285,194.19

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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.