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Finding the Fourth Proportional to 305,694.20, 458,541.30 and 165,726.20

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Solution

The fourth proportional to 305,694.20, 458,541.30 and 165,726.20 is: 248,589.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,694.20 : 458,541.30 = 165,726.20 : x
  2. Step 2: Convert to fraction form
    305,694.20/458,541.30 = 165,726.20/x
  3. Step 3: Cross multiply
    305,694.20x = 458,541.30 × 165,726.20
  4. Step 4: Simplify right side
    305,694.20x = 75,992,307,192.06
  5. Step 5: Solve for x
    x = 75,992,307,192.06/305,694.20
  6. Step 6: Final answer
    x = 248,589.30

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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.