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Finding the Fourth Proportional to 376,348.42, 519,357.69 and 206,572.42

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Solution

The fourth proportional to 376,348.42, 519,357.69 and 206,572.42 is: 285,068.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,348.42 : 519,357.69 = 206,572.42 : x
  2. Step 2: Convert to fraction form
    376,348.42/519,357.69 = 206,572.42/x
  3. Step 3: Cross multiply
    376,348.42x = 519,357.69 × 206,572.42
  4. Step 4: Simplify right side
    376,348.42x = 107,284,974,868.91
  5. Step 5: Solve for x
    x = 107,284,974,868.91/376,348.42
  6. Step 6: Final answer
    x = 285,068.22

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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.