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Finding the Fourth Proportional to 476,656.84, 657,791.85 and 261,801.91

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Solution

The fourth proportional to 476,656.84, 657,791.85 and 261,801.91 is: 361,289.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,656.84 : 657,791.85 = 261,801.91 : x
  2. Step 2: Convert to fraction form
    476,656.84/657,791.85 = 261,801.91/x
  3. Step 3: Cross multiply
    476,656.84x = 657,791.85 × 261,801.91
  4. Step 4: Simplify right side
    476,656.84x = 172,211,162,712.43
  5. Step 5: Solve for x
    x = 172,211,162,712.43/476,656.84
  6. Step 6: Final answer
    x = 361,289.61

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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.