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Finding the Fourth Proportional to 394,639.96, 591,994.58 and 110,333.62

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Solution

The fourth proportional to 394,639.96, 591,994.58 and 110,333.62 is: 165,510.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,639.96 : 591,994.58 = 110,333.62 : x
  2. Step 2: Convert to fraction form
    394,639.96/591,994.58 = 110,333.62/x
  3. Step 3: Cross multiply
    394,639.96x = 591,994.58 × 110,333.62
  4. Step 4: Simplify right side
    394,639.96x = 65,316,905,031.78
  5. Step 5: Solve for x
    x = 65,316,905,031.78/394,639.96
  6. Step 6: Final answer
    x = 165,510.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.