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Finding the Fourth Proportional to 336,992,256, 505,488,384 and 81,690,624

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Solution

The fourth proportional to 336,992,256, 505,488,384 and 81,690,624 is: 122,535,936

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,992,256 : 505,488,384 = 81,690,624 : x
  2. Step 2: Convert to fraction form
    336,992,256/505,488,384 = 81,690,624/x
  3. Step 3: Cross multiply
    336,992,256x = 505,488,384 × 81,690,624
  4. Step 4: Simplify right side
    336,992,256x = 41,293,661,513,711,616
  5. Step 5: Solve for x
    x = 41,293,661,513,711,616/336,992,256
  6. Step 6: Final answer
    x = 122,535,936

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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.