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Finding the Third Proportional to 185,946,430 and 405,373,691

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Solution

The third proportional to 185,946,430 and 405,373,691 is: 883,737,479.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,946,430 : 405,373,691 = 405,373,691 : x
  2. Step 2: Convert to fraction form
    185,946,430/405,373,691 = 405,373,691/x
  3. Step 3: Cross multiply
    185,946,430x = 405,373,691 × 405,373,691
  4. Step 4: Simplify right side
    185,946,430x = 164,327,829,354,963,488
  5. Step 5: Solve for x
    x = 164,327,829,354,963,488/185,946,430
  6. Step 6: Final answer
    x = 883,737,479.42

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.