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Finding the Fourth Proportional to 619,659.59, 929,489.40 and 199,230.71

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Solution

The fourth proportional to 619,659.59, 929,489.40 and 199,230.71 is: 298,846.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,659.59 : 929,489.40 = 199,230.71 : x
  2. Step 2: Convert to fraction form
    619,659.59/929,489.40 = 199,230.71/x
  3. Step 3: Cross multiply
    619,659.59x = 929,489.40 × 199,230.71
  4. Step 4: Simplify right side
    619,659.59x = 185,182,828,452.03
  5. Step 5: Solve for x
    x = 185,182,828,452.03/619,659.59
  6. Step 6: Final answer
    x = 298,846.06

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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.