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Finding the Fourth Proportional to 407,119,375.20, 610,679,062.80 and 407,119,375.20

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Solution

The fourth proportional to 407,119,375.20, 610,679,062.80 and 407,119,375.20 is: 610,679,062.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,119,375.20 : 610,679,062.80 = 407,119,375.20 : x
  2. Step 2: Convert to fraction form
    407,119,375.20/610,679,062.80 = 407,119,375.20/x
  3. Step 3: Cross multiply
    407,119,375.20x = 610,679,062.80 × 407,119,375.20
  4. Step 4: Simplify right side
    407,119,375.20x = 248,619,278,494,857,536
  5. Step 5: Solve for x
    x = 248,619,278,494,857,536/407,119,375.20
  6. Step 6: Final answer
    x = 610,679,062.80

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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.