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Finding the Fourth Proportional to 376,622.04, 519,763.86 and 206,857.92

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Solution

The fourth proportional to 376,622.04, 519,763.86 and 206,857.92 is: 285,477.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,622.04 : 519,763.86 = 206,857.92 : x
  2. Step 2: Convert to fraction form
    376,622.04/519,763.86 = 206,857.92/x
  3. Step 3: Cross multiply
    376,622.04x = 519,763.86 × 206,857.92
  4. Step 4: Simplify right side
    376,622.04x = 107,517,270,970.77
  5. Step 5: Solve for x
    x = 107,517,270,970.77/376,622.04
  6. Step 6: Final answer
    x = 285,477.91

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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.