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Finding the Fourth Proportional to 929,179,236.97, 1,393,978,834.33 and 307,392,998.39

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Solution

The fourth proportional to 929,179,236.97, 1,393,978,834.33 and 307,392,998.39 is: 461,158,963.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,179,236.97 : 1,393,978,834.33 = 307,392,998.39 : x
  2. Step 2: Convert to fraction form
    929,179,236.97/1,393,978,834.33 = 307,392,998.39/x
  3. Step 3: Cross multiply
    929,179,236.97x = 1,393,978,834.33 × 307,392,998.39
  4. Step 4: Simplify right side
    929,179,236.97x = 428,499,333,575,833,536
  5. Step 5: Solve for x
    x = 428,499,333,575,833,536/929,179,236.97
  6. Step 6: Final answer
    x = 461,158,963.23

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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.