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Finding the Fourth Proportional to 336,302,687.80, 504,454,031.70 and 197,986,310.20

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Solution

The fourth proportional to 336,302,687.80, 504,454,031.70 and 197,986,310.20 is: 296,979,465.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,302,687.80 : 504,454,031.70 = 197,986,310.20 : x
  2. Step 2: Convert to fraction form
    336,302,687.80/504,454,031.70 = 197,986,310.20/x
  3. Step 3: Cross multiply
    336,302,687.80x = 504,454,031.70 × 197,986,310.20
  4. Step 4: Simplify right side
    336,302,687.80x = 99,874,992,401,796,832
  5. Step 5: Solve for x
    x = 99,874,992,401,796,832/336,302,687.80
  6. Step 6: Final answer
    x = 296,979,465.30

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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.