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Finding the Fourth Proportional to 323,418.20, 485,127.30 and 113,034.20

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Solution

The fourth proportional to 323,418.20, 485,127.30 and 113,034.20 is: 169,551.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,418.20 : 485,127.30 = 113,034.20 : x
  2. Step 2: Convert to fraction form
    323,418.20/485,127.30 = 113,034.20/x
  3. Step 3: Cross multiply
    323,418.20x = 485,127.30 × 113,034.20
  4. Step 4: Simplify right side
    323,418.20x = 54,835,976,253.66
  5. Step 5: Solve for x
    x = 54,835,976,253.66/323,418.20
  6. Step 6: Final answer
    x = 169,551.30

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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.