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Finding the Fourth Proportional to 641,140.62, 884,687.40 and 365,534.03

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Solution

The fourth proportional to 641,140.62, 884,687.40 and 365,534.03 is: 504,387.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,140.62 : 884,687.40 = 365,534.03 : x
  2. Step 2: Convert to fraction form
    641,140.62/884,687.40 = 365,534.03/x
  3. Step 3: Cross multiply
    641,140.62x = 884,687.40 × 365,534.03
  4. Step 4: Simplify right side
    641,140.62x = 323,383,352,823.94
  5. Step 5: Solve for x
    x = 323,383,352,823.94/641,140.62
  6. Step 6: Final answer
    x = 504,387.56

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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.