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Finding the Fourth Proportional to 481,624,691.22, 664,697,209.22 and 269,988,682.07

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Solution

The fourth proportional to 481,624,691.22, 664,697,209.22 and 269,988,682.07 is: 372,615,288.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,624,691.22 : 664,697,209.22 = 269,988,682.07 : x
  2. Step 2: Convert to fraction form
    481,624,691.22/664,697,209.22 = 269,988,682.07/x
  3. Step 3: Cross multiply
    481,624,691.22x = 664,697,209.22 × 269,988,682.07
  4. Step 4: Simplify right side
    481,624,691.22x = 179,460,723,492,914,848
  5. Step 5: Solve for x
    x = 179,460,723,492,914,848/481,624,691.22
  6. Step 6: Final answer
    x = 372,615,288.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.