Home / 393,080.86-589,849.84-165,359.78

Finding the Fourth Proportional to 393,080.86, 589,849.84 and 165,359.78

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Solution

The fourth proportional to 393,080.86, 589,849.84 and 165,359.78 is: 248,135.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,080.86 : 589,849.84 = 165,359.78 : x
  2. Step 2: Convert to fraction form
    393,080.86/589,849.84 = 165,359.78/x
  3. Step 3: Cross multiply
    393,080.86x = 589,849.84 × 165,359.78
  4. Step 4: Simplify right side
    393,080.86x = 97,537,439,775.44
  5. Step 5: Solve for x
    x = 97,537,439,775.44/393,080.86
  6. Step 6: Final answer
    x = 248,135.82

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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.