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Finding the Fourth Proportional to 668,818,802,512.73, 1,003,228,203,769.10 and 668,818,802,512.73

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Solution

The fourth proportional to 668,818,802,512.73, 1,003,228,203,769.10 and 668,818,802,512.73 is: 1,003,228,203,769.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,818,802,512.73 : 1,003,228,203,769.10 = 668,818,802,512.73 : x
  2. Step 2: Convert to fraction form
    668,818,802,512.73/1,003,228,203,769.10 = 668,818,802,512.73/x
  3. Step 3: Cross multiply
    668,818,802,512.73x = 1,003,228,203,769.10 × 668,818,802,512.73
  4. Step 4: Simplify right side
    668,818,802,512.73x = 670,977,885,891,846,509,428,736
  5. Step 5: Solve for x
    x = 670,977,885,891,846,509,428,736/668,818,802,512.73
  6. Step 6: Final answer
    x = 1,003,228,203,769.10

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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.