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Finding the Third Proportional to 211,637,438 and 431,777,892

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Solution

The third proportional to 211,637,438 and 431,777,892 is: 880,903,444.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,637,438 : 431,777,892 = 431,777,892 : x
  2. Step 2: Convert to fraction form
    211,637,438/431,777,892 = 431,777,892/x
  3. Step 3: Cross multiply
    211,637,438x = 431,777,892 × 431,777,892
  4. Step 4: Simplify right side
    211,637,438x = 186,432,148,019,963,648
  5. Step 5: Solve for x
    x = 186,432,148,019,963,648/211,637,438
  6. Step 6: Final answer
    x = 880,903,444.03

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.