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Finding the Fourth Proportional to 481,266.06, 721,656.02 and 281,646.42

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Solution

The fourth proportional to 481,266.06, 721,656.02 and 281,646.42 is: 422,327.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,266.06 : 721,656.02 = 281,646.42 : x
  2. Step 2: Convert to fraction form
    481,266.06/721,656.02 = 281,646.42/x
  3. Step 3: Cross multiply
    481,266.06x = 721,656.02 × 281,646.42
  4. Step 4: Simplify right side
    481,266.06x = 203,251,834,504.45
  5. Step 5: Solve for x
    x = 203,251,834,504.45/481,266.06
  6. Step 6: Final answer
    x = 422,327.38

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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.