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Finding the Fourth Proportional to 547,731.11, 821,793.50 and 481,989.89

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Solution

The fourth proportional to 547,731.11, 821,793.50 and 481,989.89 is: 723,158.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,731.11 : 821,793.50 = 481,989.89 : x
  2. Step 2: Convert to fraction form
    547,731.11/821,793.50 = 481,989.89/x
  3. Step 3: Cross multiply
    547,731.11x = 821,793.50 × 481,989.89
  4. Step 4: Simplify right side
    547,731.11x = 396,096,160,119.71
  5. Step 5: Solve for x
    x = 396,096,160,119.71/547,731.11
  6. Step 6: Final answer
    x = 723,158.04

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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.