Home / 641,591.32-961,949.53-325,438.60

Finding the Fourth Proportional to 641,591.32, 961,949.53 and 325,438.60

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Solution

The fourth proportional to 641,591.32, 961,949.53 and 325,438.60 is: 487,936.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,591.32 : 961,949.53 = 325,438.60 : x
  2. Step 2: Convert to fraction form
    641,591.32/961,949.53 = 325,438.60/x
  3. Step 3: Cross multiply
    641,591.32x = 961,949.53 × 325,438.60
  4. Step 4: Simplify right side
    641,591.32x = 313,055,508,313.86
  5. Step 5: Solve for x
    x = 313,055,508,313.86/641,591.32
  6. Step 6: Final answer
    x = 487,936.01

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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.