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Finding the Third Proportional to 199,603,549 and 436,835,379

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Solution

The third proportional to 199,603,549 and 436,835,379 is: 956,020,818.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,603,549 : 436,835,379 = 436,835,379 : x
  2. Step 2: Convert to fraction form
    199,603,549/436,835,379 = 436,835,379/x
  3. Step 3: Cross multiply
    199,603,549x = 436,835,379 × 436,835,379
  4. Step 4: Simplify right side
    199,603,549x = 190,825,148,346,073,632
  5. Step 5: Solve for x
    x = 190,825,148,346,073,632/199,603,549
  6. Step 6: Final answer
    x = 956,020,818.78

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Why These Related Problems?

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