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Finding the Fourth Proportional to 766,794,964.40, 1,150,914,059.40 and 403,550,010.80

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Solution

The fourth proportional to 766,794,964.40, 1,150,914,059.40 and 403,550,010.80 is: 605,704,787.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,794,964.40 : 1,150,914,059.40 = 403,550,010.80 : x
  2. Step 2: Convert to fraction form
    766,794,964.40/1,150,914,059.40 = 403,550,010.80/x
  3. Step 3: Cross multiply
    766,794,964.40x = 1,150,914,059.40 × 403,550,010.80
  4. Step 4: Simplify right side
    766,794,964.40x = 464,451,381,100,741,888
  5. Step 5: Solve for x
    x = 464,451,381,100,741,888/766,794,964.40
  6. Step 6: Final answer
    x = 605,704,787.67

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1.5x scale

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.