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Finding the Fourth Proportional to 463,768.08, 639,854.69 and 259,791.45

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Solution

The fourth proportional to 463,768.08, 639,854.69 and 259,791.45 is: 358,430.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,768.08 : 639,854.69 = 259,791.45 : x
  2. Step 2: Convert to fraction form
    463,768.08/639,854.69 = 259,791.45/x
  3. Step 3: Cross multiply
    463,768.08x = 639,854.69 × 259,791.45
  4. Step 4: Simplify right side
    463,768.08x = 166,228,776,405.44
  5. Step 5: Solve for x
    x = 166,228,776,405.44/463,768.08
  6. Step 6: Final answer
    x = 358,430.83

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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.