Home / 394,936.12-592,343.34-128,695.96

Finding the Fourth Proportional to 394,936.12, 592,343.34 and 128,695.96

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Solution

The fourth proportional to 394,936.12, 592,343.34 and 128,695.96 is: 193,024.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,936.12 : 592,343.34 = 128,695.96 : x
  2. Step 2: Convert to fraction form
    394,936.12/592,343.34 = 128,695.96/x
  3. Step 3: Cross multiply
    394,936.12x = 592,343.34 × 128,695.96
  4. Step 4: Simplify right side
    394,936.12x = 76,232,194,790.91
  5. Step 5: Solve for x
    x = 76,232,194,790.91/394,936.12
  6. Step 6: Final answer
    x = 193,024.11

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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.