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Finding the Fourth Proportional to 484,612.80, 727,696.80 and 327,537.60

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Solution

The fourth proportional to 484,612.80, 727,696.80 and 327,537.60 is: 491,831.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,612.80 : 727,696.80 = 327,537.60 : x
  2. Step 2: Convert to fraction form
    484,612.80/727,696.80 = 327,537.60/x
  3. Step 3: Cross multiply
    484,612.80x = 727,696.80 × 327,537.60
  4. Step 4: Simplify right side
    484,612.80x = 238,348,063,399.68
  5. Step 5: Solve for x
    x = 238,348,063,399.68/484,612.80
  6. Step 6: Final answer
    x = 491,831.96

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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.