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Finding the Fourth Proportional to 734,856,728.40, 1,100,773,438.20 and 371,555,787.60

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Solution

The fourth proportional to 734,856,728.40, 1,100,773,438.20 and 371,555,787.60 is: 556,569,363.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,856,728.40 : 1,100,773,438.20 = 371,555,787.60 : x
  2. Step 2: Convert to fraction form
    734,856,728.40/1,100,773,438.20 = 371,555,787.60/x
  3. Step 3: Cross multiply
    734,856,728.40x = 1,100,773,438.20 × 371,555,787.60
  4. Step 4: Simplify right side
    734,856,728.40x = 408,998,741,799,560,960
  5. Step 5: Solve for x
    x = 408,998,741,799,560,960/734,856,728.40
  6. Step 6: Final answer
    x = 556,569,363.79

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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.