Home / 354,979.40-532,469.10-327,945.80

Finding the Fourth Proportional to 354,979.40, 532,469.10 and 327,945.80

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Solution

The fourth proportional to 354,979.40, 532,469.10 and 327,945.80 is: 491,918.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,979.40 : 532,469.10 = 327,945.80 : x
  2. Step 2: Convert to fraction form
    354,979.40/532,469.10 = 327,945.80/x
  3. Step 3: Cross multiply
    354,979.40x = 532,469.10 × 327,945.80
  4. Step 4: Simplify right side
    354,979.40x = 174,621,004,974.78
  5. Step 5: Solve for x
    x = 174,621,004,974.78/354,979.40
  6. Step 6: Final answer
    x = 491,918.70

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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.