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Finding the Third Proportional to 191,587,979 and 419,446,779

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Solution

The third proportional to 191,587,979 and 419,446,779 is: 918,301,875.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,587,979 : 419,446,779 = 419,446,779 : x
  2. Step 2: Convert to fraction form
    191,587,979/419,446,779 = 419,446,779/x
  3. Step 3: Cross multiply
    191,587,979x = 419,446,779 × 419,446,779
  4. Step 4: Simplify right side
    191,587,979x = 175,935,600,413,474,848
  5. Step 5: Solve for x
    x = 175,935,600,413,474,848/191,587,979
  6. Step 6: Final answer
    x = 918,301,875.37

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