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Finding the Fourth Proportional to 481,855.80, 721,908.90 and 294,648.60

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Solution

The fourth proportional to 481,855.80, 721,908.90 and 294,648.60 is: 441,437.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,855.80 : 721,908.90 = 294,648.60 : x
  2. Step 2: Convert to fraction form
    481,855.80/721,908.90 = 294,648.60/x
  3. Step 3: Cross multiply
    481,855.80x = 721,908.90 × 294,648.60
  4. Step 4: Simplify right side
    481,855.80x = 212,709,446,712.54
  5. Step 5: Solve for x
    x = 212,709,446,712.54/481,855.80
  6. Step 6: Final answer
    x = 441,437.97

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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.