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Finding the Fourth Proportional to 629,958.60, 944,692.20 and 274,730.40

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Solution

The fourth proportional to 629,958.60, 944,692.20 and 274,730.40 is: 411,988.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,958.60 : 944,692.20 = 274,730.40 : x
  2. Step 2: Convert to fraction form
    629,958.60/944,692.20 = 274,730.40/x
  3. Step 3: Cross multiply
    629,958.60x = 944,692.20 × 274,730.40
  4. Step 4: Simplify right side
    629,958.60x = 259,535,665,982.88
  5. Step 5: Solve for x
    x = 259,535,665,982.88/629,958.60
  6. Step 6: Final answer
    x = 411,988.45

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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.