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Finding the Fourth Proportional to 671,676.92, 1,007,909.04 and 481,932.80

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Solution

The fourth proportional to 671,676.92, 1,007,909.04 and 481,932.80 is: 723,181.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,676.92 : 1,007,909.04 = 481,932.80 : x
  2. Step 2: Convert to fraction form
    671,676.92/1,007,909.04 = 481,932.80/x
  3. Step 3: Cross multiply
    671,676.92x = 1,007,909.04 × 481,932.80
  4. Step 4: Simplify right side
    671,676.92x = 485,744,430,119.53
  5. Step 5: Solve for x
    x = 485,744,430,119.53/671,676.92
  6. Step 6: Final answer
    x = 723,181.66

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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.