Home / 857,949.44-1,286,933.34-258,915.97

Finding the Fourth Proportional to 857,949.44, 1,286,933.34 and 258,915.97

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Solution

The fourth proportional to 857,949.44, 1,286,933.34 and 258,915.97 is: 388,376.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,949.44 : 1,286,933.34 = 258,915.97 : x
  2. Step 2: Convert to fraction form
    857,949.44/1,286,933.34 = 258,915.97/x
  3. Step 3: Cross multiply
    857,949.44x = 1,286,933.34 × 258,915.97
  4. Step 4: Simplify right side
    857,949.44x = 333,207,591,805.04
  5. Step 5: Solve for x
    x = 333,207,591,805.04/857,949.44
  6. Step 6: Final answer
    x = 388,376.72

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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.