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Finding the Fourth Proportional to 449,339,718.10, 629,924,951.90 and 449,339,718.10

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Solution

The fourth proportional to 449,339,718.10, 629,924,951.90 and 449,339,718.10 is: 629,924,951.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,339,718.10 : 629,924,951.90 = 449,339,718.10 : x
  2. Step 2: Convert to fraction form
    449,339,718.10/629,924,951.90 = 449,339,718.10/x
  3. Step 3: Cross multiply
    449,339,718.10x = 629,924,951.90 × 449,339,718.10
  4. Step 4: Simplify right side
    449,339,718.10x = 283,050,300,310,902,048
  5. Step 5: Solve for x
    x = 283,050,300,310,902,048/449,339,718.10
  6. Step 6: Final answer
    x = 629,924,951.90

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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.