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Finding the Fourth Proportional to 484,687.80, 727,809.30 and 327,612.60

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Solution

The fourth proportional to 484,687.80, 727,809.30 and 327,612.60 is: 491,944.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,687.80 : 727,809.30 = 327,612.60 : x
  2. Step 2: Convert to fraction form
    484,687.80/727,809.30 = 327,612.60/x
  3. Step 3: Cross multiply
    484,687.80x = 727,809.30 × 327,612.60
  4. Step 4: Simplify right side
    484,687.80x = 238,439,497,077.18
  5. Step 5: Solve for x
    x = 238,439,497,077.18/484,687.80
  6. Step 6: Final answer
    x = 491,944.50

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Why These Related Problems?

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