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Finding the Fourth Proportional to 472,393,092.80, 708,589,639.20 and 441,782,091.20

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Solution

The fourth proportional to 472,393,092.80, 708,589,639.20 and 441,782,091.20 is: 662,673,136.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,092.80 : 708,589,639.20 = 441,782,091.20 : x
  2. Step 2: Convert to fraction form
    472,393,092.80/708,589,639.20 = 441,782,091.20/x
  3. Step 3: Cross multiply
    472,393,092.80x = 708,589,639.20 × 441,782,091.20
  4. Step 4: Simplify right side
    472,393,092.80x = 313,042,212,608,429,504
  5. Step 5: Solve for x
    x = 313,042,212,608,429,504/472,393,092.80
  6. Step 6: Final answer
    x = 662,673,136.80

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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.