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Finding the Third Proportional to 908,268,660 and 1,988,487,900

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Solution

The third proportional to 908,268,660 and 1,988,487,900 is: 4,353,430,105.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,268,660 : 1,988,487,900 = 1,988,487,900 : x
  2. Step 2: Convert to fraction form
    908,268,660/1,988,487,900 = 1,988,487,900/x
  3. Step 3: Cross multiply
    908,268,660x = 1,988,487,900 × 1,988,487,900
  4. Step 4: Simplify right side
    908,268,660x = 3,954,084,128,446,410,240
  5. Step 5: Solve for x
    x = 3,954,084,128,446,410,240/908,268,660
  6. Step 6: Final answer
    x = 4,353,430,105.63

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.