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Finding the Fourth Proportional to 574,633.98, 861,655.67 and 308,618.22

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Solution

The fourth proportional to 574,633.98, 861,655.67 and 308,618.22 is: 462,768.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,633.98 : 861,655.67 = 308,618.22 : x
  2. Step 2: Convert to fraction form
    574,633.98/861,655.67 = 308,618.22/x
  3. Step 3: Cross multiply
    574,633.98x = 861,655.67 × 308,618.22
  4. Step 4: Simplify right side
    574,633.98x = 265,922,635,591.58
  5. Step 5: Solve for x
    x = 265,922,635,591.58/574,633.98
  6. Step 6: Final answer
    x = 462,768.73

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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.