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Finding the Fourth Proportional to 318,924,036.20, 447,702,974.20 and 318,924,036.20

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Solution

The fourth proportional to 318,924,036.20, 447,702,974.20 and 318,924,036.20 is: 447,702,974.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,924,036.20 : 447,702,974.20 = 318,924,036.20 : x
  2. Step 2: Convert to fraction form
    318,924,036.20/447,702,974.20 = 318,924,036.20/x
  3. Step 3: Cross multiply
    318,924,036.20x = 447,702,974.20 × 318,924,036.20
  4. Step 4: Simplify right side
    318,924,036.20x = 142,783,239,550,608,464
  5. Step 5: Solve for x
    x = 142,783,239,550,608,464/318,924,036.20
  6. Step 6: Final answer
    x = 447,702,974.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.