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Finding the Fourth Proportional to 587,615,791.94, 810,916,229.02 and 319,693,147.42

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Solution

The fourth proportional to 587,615,791.94, 810,916,229.02 and 319,693,147.42 is: 441,180,045.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,615,791.94 : 810,916,229.02 = 319,693,147.42 : x
  2. Step 2: Convert to fraction form
    587,615,791.94/810,916,229.02 = 319,693,147.42/x
  3. Step 3: Cross multiply
    587,615,791.94x = 810,916,229.02 × 319,693,147.42
  4. Step 4: Simplify right side
    587,615,791.94x = 259,244,361,549,361,344
  5. Step 5: Solve for x
    x = 259,244,361,549,361,344/587,615,791.94
  6. Step 6: Final answer
    x = 441,180,045.03

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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.