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Finding the Fourth Proportional to 484,996.80, 727,626.60 and 185,319.48

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Solution

The fourth proportional to 484,996.80, 727,626.60 and 185,319.48 is: 278,029.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,996.80 : 727,626.60 = 185,319.48 : x
  2. Step 2: Convert to fraction form
    484,996.80/727,626.60 = 185,319.48/x
  3. Step 3: Cross multiply
    484,996.80x = 727,626.60 × 185,319.48
  4. Step 4: Simplify right side
    484,996.80x = 134,843,383,146.17
  5. Step 5: Solve for x
    x = 134,843,383,146.17/484,996.80
  6. Step 6: Final answer
    x = 278,029.43

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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.