Home / 395,986.09-545,932.16-314,584.43

Finding the Fourth Proportional to 395,986.09, 545,932.16 and 314,584.43

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Solution

The fourth proportional to 395,986.09, 545,932.16 and 314,584.43 is: 433,706.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,986.09 : 545,932.16 = 314,584.43 : x
  2. Step 2: Convert to fraction form
    395,986.09/545,932.16 = 314,584.43/x
  3. Step 3: Cross multiply
    395,986.09x = 545,932.16 × 314,584.43
  4. Step 4: Simplify right side
    395,986.09x = 171,741,757,164.18
  5. Step 5: Solve for x
    x = 171,741,757,164.18/395,986.09
  6. Step 6: Final answer
    x = 433,706.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.