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Finding the Fourth Proportional to 421,542.88, 581,694.06 and 237,771.32

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Solution

The fourth proportional to 421,542.88, 581,694.06 and 237,771.32 is: 328,104.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,542.88 : 581,694.06 = 237,771.32 : x
  2. Step 2: Convert to fraction form
    421,542.88/581,694.06 = 237,771.32/x
  3. Step 3: Cross multiply
    421,542.88x = 581,694.06 × 237,771.32
  4. Step 4: Simplify right side
    421,542.88x = 138,310,165,936.59
  5. Step 5: Solve for x
    x = 138,310,165,936.59/421,542.88
  6. Step 6: Final answer
    x = 328,104.62

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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.