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Finding the Fourth Proportional to 629,735.40, 943,988.70 and 563,380.20

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Solution

The fourth proportional to 629,735.40, 943,988.70 and 563,380.20 is: 844,520.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,735.40 : 943,988.70 = 563,380.20 : x
  2. Step 2: Convert to fraction form
    629,735.40/943,988.70 = 563,380.20/x
  3. Step 3: Cross multiply
    629,735.40x = 943,988.70 × 563,380.20
  4. Step 4: Simplify right side
    629,735.40x = 531,824,542,603.74
  5. Step 5: Solve for x
    x = 531,824,542,603.74/629,735.40
  6. Step 6: Final answer
    x = 844,520.64

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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.