Home / 393,023.72-589,535.27-126,784.22

Finding the Fourth Proportional to 393,023.72, 589,535.27 and 126,784.22

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Solution

The fourth proportional to 393,023.72, 589,535.27 and 126,784.22 is: 190,176.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,023.72 : 589,535.27 = 126,784.22 : x
  2. Step 2: Convert to fraction form
    393,023.72/589,535.27 = 126,784.22/x
  3. Step 3: Cross multiply
    393,023.72x = 589,535.27 × 126,784.22
  4. Step 4: Simplify right side
    393,023.72x = 74,743,768,735.52
  5. Step 5: Solve for x
    x = 74,743,768,735.52/393,023.72
  6. Step 6: Final answer
    x = 190,176.23

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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.