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Finding the Third Proportional to 621,809,999,718 and 955,342,340,880

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Solution

The third proportional to 621,809,999,718 and 955,342,340,880 is: 1,467,777,920,412.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,809,999,718 : 955,342,340,880 = 955,342,340,880 : x
  2. Step 2: Convert to fraction form
    621,809,999,718/955,342,340,880 = 955,342,340,880/x
  3. Step 3: Cross multiply
    621,809,999,718x = 955,342,340,880 × 955,342,340,880
  4. Step 4: Simplify right side
    621,809,999,718x = 912,678,988,278,078,145,298,432
  5. Step 5: Solve for x
    x = 912,678,988,278,078,145,298,432/621,809,999,718
  6. Step 6: Final answer
    x = 1,467,777,920,412.97

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.