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Finding the Third Proportional to 216,899,057 and 330,430,809

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Solution

The third proportional to 216,899,057 and 330,430,809 is: 503,388,631.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,899,057 : 330,430,809 = 330,430,809 : x
  2. Step 2: Convert to fraction form
    216,899,057/330,430,809 = 330,430,809/x
  3. Step 3: Cross multiply
    216,899,057x = 330,430,809 × 330,430,809
  4. Step 4: Simplify right side
    216,899,057x = 109,184,519,536,394,480
  5. Step 5: Solve for x
    x = 109,184,519,536,394,480/216,899,057
  6. Step 6: Final answer
    x = 503,388,631.77

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These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.