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Finding the Fourth Proportional to 626,889,744.40, 940,334,616.60 and 166,874,414.80

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Solution

The fourth proportional to 626,889,744.40, 940,334,616.60 and 166,874,414.80 is: 250,311,622.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,889,744.40 : 940,334,616.60 = 166,874,414.80 : x
  2. Step 2: Convert to fraction form
    626,889,744.40/940,334,616.60 = 166,874,414.80/x
  3. Step 3: Cross multiply
    626,889,744.40x = 940,334,616.60 × 166,874,414.80
  4. Step 4: Simplify right side
    626,889,744.40x = 156,917,788,861,307,392
  5. Step 5: Solve for x
    x = 156,917,788,861,307,392/626,889,744.40
  6. Step 6: Final answer
    x = 250,311,622.20

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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.