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Finding the Fourth Proportional to 713,187,670.09, 984,200,142.54 and 395,647,924.22

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Solution

The fourth proportional to 713,187,670.09, 984,200,142.54 and 395,647,924.22 is: 545,994,777.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,187,670.09 : 984,200,142.54 = 395,647,924.22 : x
  2. Step 2: Convert to fraction form
    713,187,670.09/984,200,142.54 = 395,647,924.22/x
  3. Step 3: Cross multiply
    713,187,670.09x = 984,200,142.54 × 395,647,924.22
  4. Step 4: Simplify right side
    713,187,670.09x = 389,396,743,414,452,544
  5. Step 5: Solve for x
    x = 389,396,743,414,452,544/713,187,670.09
  6. Step 6: Final answer
    x = 545,994,777.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.