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Finding the Fourth Proportional to 404,996,791.92, 558,907,048.62 and 228,792,243.12

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Solution

The fourth proportional to 404,996,791.92, 558,907,048.62 and 228,792,243.12 is: 315,739,778.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,996,791.92 : 558,907,048.62 = 228,792,243.12 : x
  2. Step 2: Convert to fraction form
    404,996,791.92/558,907,048.62 = 228,792,243.12/x
  3. Step 3: Cross multiply
    404,996,791.92x = 558,907,048.62 × 228,792,243.12
  4. Step 4: Simplify right side
    404,996,791.92x = 127,873,597,349,348,704
  5. Step 5: Solve for x
    x = 127,873,597,349,348,704/404,996,791.92
  6. Step 6: Final answer
    x = 315,739,778.44

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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.