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Finding the Fourth Proportional to 331,304.96, 499,170.38 and 299,755.46

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Solution

The fourth proportional to 331,304.96, 499,170.38 and 299,755.46 is: 451,635.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,304.96 : 499,170.38 = 299,755.46 : x
  2. Step 2: Convert to fraction form
    331,304.96/499,170.38 = 299,755.46/x
  3. Step 3: Cross multiply
    331,304.96x = 499,170.38 × 299,755.46
  4. Step 4: Simplify right side
    331,304.96x = 149,629,046,875.28
  5. Step 5: Solve for x
    x = 149,629,046,875.28/331,304.96
  6. Step 6: Final answer
    x = 451,635.40

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.