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Finding the Fourth Proportional to 419,904,744.90, 629,857,117.35 and 419,904,744.90

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Solution

The fourth proportional to 419,904,744.90, 629,857,117.35 and 419,904,744.90 is: 629,857,117.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,744.90 : 629,857,117.35 = 419,904,744.90 : x
  2. Step 2: Convert to fraction form
    419,904,744.90/629,857,117.35 = 419,904,744.90/x
  3. Step 3: Cross multiply
    419,904,744.90x = 629,857,117.35 × 419,904,744.90
  4. Step 4: Simplify right side
    419,904,744.90x = 264,479,992,184,301,120
  5. Step 5: Solve for x
    x = 264,479,992,184,301,120/419,904,744.90
  6. Step 6: Final answer
    x = 629,857,117.35

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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.