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Finding the Third Proportional to 402,783,186 and 867,543,212

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Solution

The third proportional to 402,783,186 and 867,543,212 is: 1,868,576,571.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,783,186 : 867,543,212 = 867,543,212 : x
  2. Step 2: Convert to fraction form
    402,783,186/867,543,212 = 867,543,212/x
  3. Step 3: Cross multiply
    402,783,186x = 867,543,212 × 867,543,212
  4. Step 4: Simplify right side
    402,783,186x = 752,631,224,687,276,928
  5. Step 5: Solve for x
    x = 752,631,224,687,276,928/402,783,186
  6. Step 6: Final answer
    x = 1,868,576,571.34

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.