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Finding the Fourth Proportional to 1,183,782,638.70, 1,660,016,672.10 and 1,183,782,638.70

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Solution

The fourth proportional to 1,183,782,638.70, 1,660,016,672.10 and 1,183,782,638.70 is: 1,660,016,672.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183,782,638.70 : 1,660,016,672.10 = 1,183,782,638.70 : x
  2. Step 2: Convert to fraction form
    1,183,782,638.70/1,660,016,672.10 = 1,183,782,638.70/x
  3. Step 3: Cross multiply
    1,183,782,638.70x = 1,660,016,672.10 × 1,183,782,638.70
  4. Step 4: Simplify right side
    1,183,782,638.70x = 1,965,098,916,384,530,688
  5. Step 5: Solve for x
    x = 1,965,098,916,384,530,688/1,183,782,638.70
  6. Step 6: Final answer
    x = 1,660,016,672.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.