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Finding the Fourth Proportional to 419,905,175.10, 629,857,762.65 and 419,905,175.10

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Solution

The fourth proportional to 419,905,175.10, 629,857,762.65 and 419,905,175.10 is: 629,857,762.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,905,175.10 : 629,857,762.65 = 419,905,175.10 : x
  2. Step 2: Convert to fraction form
    419,905,175.10/629,857,762.65 = 419,905,175.10/x
  3. Step 3: Cross multiply
    419,905,175.10x = 629,857,762.65 × 419,905,175.10
  4. Step 4: Simplify right side
    419,905,175.10x = 264,480,534,113,642,496
  5. Step 5: Solve for x
    x = 264,480,534,113,642,496/419,905,175.10
  6. Step 6: Final answer
    x = 629,857,762.65

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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.