Home / 435,917,930.82-654,183,310.71-394,239,965.64

Finding the Fourth Proportional to 435,917,930.82, 654,183,310.71 and 394,239,965.64

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Solution

The fourth proportional to 435,917,930.82, 654,183,310.71 and 394,239,965.64 is: 591,637,066.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,917,930.82 : 654,183,310.71 = 394,239,965.64 : x
  2. Step 2: Convert to fraction form
    435,917,930.82/654,183,310.71 = 394,239,965.64/x
  3. Step 3: Cross multiply
    435,917,930.82x = 654,183,310.71 × 394,239,965.64
  4. Step 4: Simplify right side
    435,917,930.82x = 257,905,205,936,571,840
  5. Step 5: Solve for x
    x = 257,905,205,936,571,840/435,917,930.82
  6. Step 6: Final answer
    x = 591,637,066.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.