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Finding the Fourth Proportional to 576,081.62, 794,932.34 and 317,953.80

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Solution

The fourth proportional to 576,081.62, 794,932.34 and 317,953.80 is: 438,742.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,081.62 : 794,932.34 = 317,953.80 : x
  2. Step 2: Convert to fraction form
    576,081.62/794,932.34 = 317,953.80/x
  3. Step 3: Cross multiply
    576,081.62x = 794,932.34 × 317,953.80
  4. Step 4: Simplify right side
    576,081.62x = 252,751,756,656.12
  5. Step 5: Solve for x
    x = 252,751,756,656.12/576,081.62
  6. Step 6: Final answer
    x = 438,742.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.