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Finding the Fourth Proportional to 327,698.40, 491,563.80 and 170,234.40

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Solution

The fourth proportional to 327,698.40, 491,563.80 and 170,234.40 is: 255,360.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,698.40 : 491,563.80 = 170,234.40 : x
  2. Step 2: Convert to fraction form
    327,698.40/491,563.80 = 170,234.40/x
  3. Step 3: Cross multiply
    327,698.40x = 491,563.80 × 170,234.40
  4. Step 4: Simplify right side
    327,698.40x = 83,681,068,554.72
  5. Step 5: Solve for x
    x = 83,681,068,554.72/327,698.40
  6. Step 6: Final answer
    x = 255,360.02

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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.