Home / 641,580.57-961,933.46-325,427.85

Finding the Fourth Proportional to 641,580.57, 961,933.46 and 325,427.85

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Solution

The fourth proportional to 641,580.57, 961,933.46 and 325,427.85 is: 487,919.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,580.57 : 961,933.46 = 325,427.85 : x
  2. Step 2: Convert to fraction form
    641,580.57/961,933.46 = 325,427.85/x
  3. Step 3: Cross multiply
    641,580.57x = 961,933.46 × 325,427.85
  4. Step 4: Simplify right side
    641,580.57x = 313,039,936,103.72
  5. Step 5: Solve for x
    x = 313,039,936,103.72/641,580.57
  6. Step 6: Final answer
    x = 487,919.91

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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.