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Finding the Fourth Proportional to 449,353,506.60, 629,944,255.80 and 449,353,506.60

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Solution

The fourth proportional to 449,353,506.60, 629,944,255.80 and 449,353,506.60 is: 629,944,255.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,353,506.60 : 629,944,255.80 = 449,353,506.60 : x
  2. Step 2: Convert to fraction form
    449,353,506.60/629,944,255.80 = 449,353,506.60/x
  3. Step 3: Cross multiply
    449,353,506.60x = 629,944,255.80 × 449,353,506.60
  4. Step 4: Simplify right side
    449,353,506.60x = 283,067,660,306,257,376
  5. Step 5: Solve for x
    x = 283,067,660,306,257,376/449,353,506.60
  6. Step 6: Final answer
    x = 629,944,255.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.