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Finding the Fourth Proportional to 629,712.15, 944,662.11 and 203,107.74

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Solution

The fourth proportional to 629,712.15, 944,662.11 and 203,107.74 is: 304,691.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,712.15 : 944,662.11 = 203,107.74 : x
  2. Step 2: Convert to fraction form
    629,712.15/944,662.11 = 203,107.74/x
  3. Step 3: Cross multiply
    629,712.15x = 944,662.11 × 203,107.74
  4. Step 4: Simplify right side
    629,712.15x = 191,868,186,225.73
  5. Step 5: Solve for x
    x = 191,868,186,225.73/629,712.15
  6. Step 6: Final answer
    x = 304,691.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.