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Finding the Fourth Proportional to 343,988.44, 474,694.98 and 191,021.92

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Solution

The fourth proportional to 343,988.44, 474,694.98 and 191,021.92 is: 263,605.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,988.44 : 474,694.98 = 191,021.92 : x
  2. Step 2: Convert to fraction form
    343,988.44/474,694.98 = 191,021.92/x
  3. Step 3: Cross multiply
    343,988.44x = 474,694.98 × 191,021.92
  4. Step 4: Simplify right side
    343,988.44x = 90,677,146,493.96
  5. Step 5: Solve for x
    x = 90,677,146,493.96/343,988.44
  6. Step 6: Final answer
    x = 263,605.21

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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.