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Finding the Fourth Proportional to 327,996.20, 492,080.70 and 117,612.20

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Solution

The fourth proportional to 327,996.20, 492,080.70 and 117,612.20 is: 176,449.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,996.20 : 492,080.70 = 117,612.20 : x
  2. Step 2: Convert to fraction form
    327,996.20/492,080.70 = 117,612.20/x
  3. Step 3: Cross multiply
    327,996.20x = 492,080.70 × 117,612.20
  4. Step 4: Simplify right side
    327,996.20x = 57,874,693,704.54
  5. Step 5: Solve for x
    x = 57,874,693,704.54/327,996.20
  6. Step 6: Final answer
    x = 176,449.28

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1.5x scale

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.