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Finding the Third Proportional to 669,162,772.13 and 1,449,495,128.25

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Solution

The third proportional to 669,162,772.13 and 1,449,495,128.25 is: 3,139,798,288.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,162,772.13 : 1,449,495,128.25 = 1,449,495,128.25 : x
  2. Step 2: Convert to fraction form
    669,162,772.13/1,449,495,128.25 = 1,449,495,128.25/x
  3. Step 3: Cross multiply
    669,162,772.13x = 1,449,495,128.25 × 1,449,495,128.25
  4. Step 4: Simplify right side
    669,162,772.13x = 2,101,036,126,820,483,840
  5. Step 5: Solve for x
    x = 2,101,036,126,820,483,840/669,162,772.13
  6. Step 6: Final answer
    x = 3,139,798,288.76

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.