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Finding the Fourth Proportional to 351,625.44, 485,245.40 and 190,480.48

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Solution

The fourth proportional to 351,625.44, 485,245.40 and 190,480.48 is: 262,864.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,625.44 : 485,245.40 = 190,480.48 : x
  2. Step 2: Convert to fraction form
    351,625.44/485,245.40 = 190,480.48/x
  3. Step 3: Cross multiply
    351,625.44x = 485,245.40 × 190,480.48
  4. Step 4: Simplify right side
    351,625.44x = 92,429,776,709.79
  5. Step 5: Solve for x
    x = 92,429,776,709.79/351,625.44
  6. Step 6: Final answer
    x = 262,864.30

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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.