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Finding the Fourth Proportional to 483,905.91, 667,862.82 and 348,388.41

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Solution

The fourth proportional to 483,905.91, 667,862.82 and 348,388.41 is: 480,828.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,905.91 : 667,862.82 = 348,388.41 : x
  2. Step 2: Convert to fraction form
    483,905.91/667,862.82 = 348,388.41/x
  3. Step 3: Cross multiply
    483,905.91x = 667,862.82 × 348,388.41
  4. Step 4: Simplify right side
    483,905.91x = 232,675,665,957.92
  5. Step 5: Solve for x
    x = 232,675,665,957.92/483,905.91
  6. Step 6: Final answer
    x = 480,828.32

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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.