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Finding the Fourth Proportional to 476,801.91, 657,998.24 and 261,955.89

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Solution

The fourth proportional to 476,801.91, 657,998.24 and 261,955.89 is: 361,505.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,801.91 : 657,998.24 = 261,955.89 : x
  2. Step 2: Convert to fraction form
    476,801.91/657,998.24 = 261,955.89/x
  3. Step 3: Cross multiply
    476,801.91x = 657,998.24 × 261,955.89
  4. Step 4: Simplify right side
    476,801.91x = 172,366,513,267.85
  5. Step 5: Solve for x
    x = 172,366,513,267.85/476,801.91
  6. Step 6: Final answer
    x = 361,505.50

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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.