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Finding the Fourth Proportional to 702,787.50, 969,772.33 and 396,845.34

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Solution

The fourth proportional to 702,787.50, 969,772.33 and 396,845.34 is: 547,604.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,787.50 : 969,772.33 = 396,845.34 : x
  2. Step 2: Convert to fraction form
    702,787.50/969,772.33 = 396,845.34/x
  3. Step 3: Cross multiply
    702,787.50x = 969,772.33 × 396,845.34
  4. Step 4: Simplify right side
    702,787.50x = 384,849,626,880.85
  5. Step 5: Solve for x
    x = 384,849,626,880.85/702,787.50
  6. Step 6: Final answer
    x = 547,604.54

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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.