Home / 725,195.52-1,087,419.78-325,493.64

Finding the Fourth Proportional to 725,195.52, 1,087,419.78 and 325,493.64

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Solution

The fourth proportional to 725,195.52, 1,087,419.78 and 325,493.64 is: 488,072.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,195.52 : 1,087,419.78 = 325,493.64 : x
  2. Step 2: Convert to fraction form
    725,195.52/1,087,419.78 = 325,493.64/x
  3. Step 3: Cross multiply
    725,195.52x = 1,087,419.78 × 325,493.64
  4. Step 4: Simplify right side
    725,195.52x = 353,948,222,400.20
  5. Step 5: Solve for x
    x = 353,948,222,400.20/725,195.52
  6. Step 6: Final answer
    x = 488,072.82

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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.