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Finding the Fourth Proportional to 463,767.90, 639,854.43 and 259,791.27

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Solution

The fourth proportional to 463,767.90, 639,854.43 and 259,791.27 is: 358,430.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,767.90 : 639,854.43 = 259,791.27 : x
  2. Step 2: Convert to fraction form
    463,767.90/639,854.43 = 259,791.27/x
  3. Step 3: Cross multiply
    463,767.90x = 639,854.43 × 259,791.27
  4. Step 4: Simplify right side
    463,767.90x = 166,228,594,984.83
  5. Step 5: Solve for x
    x = 166,228,594,984.83/463,767.90
  6. Step 6: Final answer
    x = 358,430.57

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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.