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Finding the Fourth Proportional to 483,906.94, 667,864.20 and 348,389.44

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Solution

The fourth proportional to 483,906.94, 667,864.20 and 348,389.44 is: 480,829.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,906.94 : 667,864.20 = 348,389.44 : x
  2. Step 2: Convert to fraction form
    483,906.94/667,864.20 = 348,389.44/x
  3. Step 3: Cross multiply
    483,906.94x = 667,864.20 × 348,389.44
  4. Step 4: Simplify right side
    483,906.94x = 232,676,834,634.05
  5. Step 5: Solve for x
    x = 232,676,834,634.05/483,906.94
  6. Step 6: Final answer
    x = 480,829.71

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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.