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Finding the Third Proportional to 392,641,832 and 608,804,670

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Solution

The third proportional to 392,641,832 and 608,804,670 is: 943,972,587.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,641,832 : 608,804,670 = 608,804,670 : x
  2. Step 2: Convert to fraction form
    392,641,832/608,804,670 = 608,804,670/x
  3. Step 3: Cross multiply
    392,641,832x = 608,804,670 × 608,804,670
  4. Step 4: Simplify right side
    392,641,832x = 370,643,126,213,808,896
  5. Step 5: Solve for x
    x = 370,643,126,213,808,896/392,641,832
  6. Step 6: Final answer
    x = 943,972,587.75

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.