Home / 392,905.68-589,354.20-235,178.16

Finding the Fourth Proportional to 392,905.68, 589,354.20 and 235,178.16

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Solution

The fourth proportional to 392,905.68, 589,354.20 and 235,178.16 is: 352,764.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,905.68 : 589,354.20 = 235,178.16 : x
  2. Step 2: Convert to fraction form
    392,905.68/589,354.20 = 235,178.16/x
  3. Step 3: Cross multiply
    392,905.68x = 589,354.20 × 235,178.16
  4. Step 4: Simplify right side
    392,905.68x = 138,603,236,344.27
  5. Step 5: Solve for x
    x = 138,603,236,344.27/392,905.68
  6. Step 6: Final answer
    x = 352,764.65

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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.