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Finding the Fourth Proportional to 689,608,894.77, 951,680,450.57 and 376,363,199.97

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Solution

The fourth proportional to 689,608,894.77, 951,680,450.57 and 376,363,199.97 is: 519,392,227.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,608,894.77 : 951,680,450.57 = 376,363,199.97 : x
  2. Step 2: Convert to fraction form
    689,608,894.77/951,680,450.57 = 376,363,199.97/x
  3. Step 3: Cross multiply
    689,608,894.77x = 951,680,450.57 × 376,363,199.97
  4. Step 4: Simplify right side
    689,608,894.77x = 358,177,499,723,534,848
  5. Step 5: Solve for x
    x = 358,177,499,723,534,848/689,608,894.77
  6. Step 6: Final answer
    x = 519,392,227.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.