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Finding the Fourth Proportional to 519,084.40, 778,772.40 and 252,853.60

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Solution

The fourth proportional to 519,084.40, 778,772.40 and 252,853.60 is: 379,351.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,084.40 : 778,772.40 = 252,853.60 : x
  2. Step 2: Convert to fraction form
    519,084.40/778,772.40 = 252,853.60/x
  3. Step 3: Cross multiply
    519,084.40x = 778,772.40 × 252,853.60
  4. Step 4: Simplify right side
    519,084.40x = 196,915,404,920.64
  5. Step 5: Solve for x
    x = 196,915,404,920.64/519,084.40
  6. Step 6: Final answer
    x = 379,351.42

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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.