Home / 641,219.20-960,516.60-325,853.80

Finding the Fourth Proportional to 641,219.20, 960,516.60 and 325,853.80

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Solution

The fourth proportional to 641,219.20, 960,516.60 and 325,853.80 is: 488,113.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,219.20 : 960,516.60 = 325,853.80 : x
  2. Step 2: Convert to fraction form
    641,219.20/960,516.60 = 325,853.80/x
  3. Step 3: Cross multiply
    641,219.20x = 960,516.60 × 325,853.80
  4. Step 4: Simplify right side
    641,219.20x = 312,987,984,073.08
  5. Step 5: Solve for x
    x = 312,987,984,073.08/641,219.20
  6. Step 6: Final answer
    x = 488,113.87

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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.