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Finding the Fourth Proportional to 629,323.57, 943,635.43 and 208,369.81

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Solution

The fourth proportional to 629,323.57, 943,635.43 and 208,369.81 is: 312,438.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,323.57 : 943,635.43 = 208,369.81 : x
  2. Step 2: Convert to fraction form
    629,323.57/943,635.43 = 208,369.81/x
  3. Step 3: Cross multiply
    629,323.57x = 943,635.43 × 208,369.81
  4. Step 4: Simplify right side
    629,323.57x = 196,625,135,258.37
  5. Step 5: Solve for x
    x = 196,625,135,258.37/629,323.57
  6. Step 6: Final answer
    x = 312,438.85

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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.