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Finding the Fourth Proportional to 561,791.89, 775,286.52 and 341,031.79

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Solution

The fourth proportional to 561,791.89, 775,286.52 and 341,031.79 is: 470,632.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,791.89 : 775,286.52 = 341,031.79 : x
  2. Step 2: Convert to fraction form
    561,791.89/775,286.52 = 341,031.79/x
  3. Step 3: Cross multiply
    561,791.89x = 775,286.52 × 341,031.79
  4. Step 4: Simplify right side
    561,791.89x = 264,397,345,802.04
  5. Step 5: Solve for x
    x = 264,397,345,802.04/561,791.89
  6. Step 6: Final answer
    x = 470,632.19

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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.