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Finding the Fourth Proportional to 576,079.30, 794,982.63 and 317,958.22

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Solution

The fourth proportional to 576,079.30, 794,982.63 and 317,958.22 is: 438,778.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,079.30 : 794,982.63 = 317,958.22 : x
  2. Step 2: Convert to fraction form
    576,079.30/794,982.63 = 317,958.22/x
  3. Step 3: Cross multiply
    576,079.30x = 794,982.63 × 317,958.22
  4. Step 4: Simplify right side
    576,079.30x = 252,771,261,965.72
  5. Step 5: Solve for x
    x = 252,771,261,965.72/576,079.30
  6. Step 6: Final answer
    x = 438,778.59

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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.