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Finding the Third Proportional to 185,946,420 and 405,373,659

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Solution

The third proportional to 185,946,420 and 405,373,659 is: 883,737,387.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,946,420 : 405,373,659 = 405,373,659 : x
  2. Step 2: Convert to fraction form
    185,946,420/405,373,659 = 405,373,659/x
  3. Step 3: Cross multiply
    185,946,420x = 405,373,659 × 405,373,659
  4. Step 4: Simplify right side
    185,946,420x = 164,327,803,411,048,288
  5. Step 5: Solve for x
    x = 164,327,803,411,048,288/185,946,420
  6. Step 6: Final answer
    x = 883,737,387.42

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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.