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Finding the Fourth Proportional to 668,818,517,471.45, 1,003,227,776,207.20 and 668,818,517,471.45

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Solution

The fourth proportional to 668,818,517,471.45, 1,003,227,776,207.20 and 668,818,517,471.45 is: 1,003,227,776,207.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,818,517,471.45 : 1,003,227,776,207.20 = 668,818,517,471.45 : x
  2. Step 2: Convert to fraction form
    668,818,517,471.45/1,003,227,776,207.20 = 668,818,517,471.45/x
  3. Step 3: Cross multiply
    668,818,517,471.45x = 1,003,227,776,207.20 × 668,818,517,471.45
  4. Step 4: Simplify right side
    668,818,517,471.45x = 670,977,313,969,079,073,112,064
  5. Step 5: Solve for x
    x = 670,977,313,969,079,073,112,064/668,818,517,471.45
  6. Step 6: Final answer
    x = 1,003,227,776,207.20

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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.