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Finding the Fourth Proportional to 481,855.12, 722,301.52 and 322,065.64

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Solution

The fourth proportional to 481,855.12, 722,301.52 and 322,065.64 is: 482,776.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,855.12 : 722,301.52 = 322,065.64 : x
  2. Step 2: Convert to fraction form
    481,855.12/722,301.52 = 322,065.64/x
  3. Step 3: Cross multiply
    481,855.12x = 722,301.52 × 322,065.64
  4. Step 4: Simplify right side
    481,855.12x = 232,628,501,311.77
  5. Step 5: Solve for x
    x = 232,628,501,311.77/481,855.12
  6. Step 6: Final answer
    x = 482,776.86

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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.