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Finding the Fourth Proportional to 327,089.60, 490,634.40 and 307,390.40

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Solution

The fourth proportional to 327,089.60, 490,634.40 and 307,390.40 is: 461,085.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,089.60 : 490,634.40 = 307,390.40 : x
  2. Step 2: Convert to fraction form
    327,089.60/490,634.40 = 307,390.40/x
  3. Step 3: Cross multiply
    327,089.60x = 490,634.40 × 307,390.40
  4. Step 4: Simplify right side
    327,089.60x = 150,816,304,469.76
  5. Step 5: Solve for x
    x = 150,816,304,469.76/327,089.60
  6. Step 6: Final answer
    x = 461,085.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.