Home / 394,285.32-591,440.04-154,389.24

Finding the Fourth Proportional to 394,285.32, 591,440.04 and 154,389.24

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Solution

The fourth proportional to 394,285.32, 591,440.04 and 154,389.24 is: 231,588.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,285.32 : 591,440.04 = 154,389.24 : x
  2. Step 2: Convert to fraction form
    394,285.32/591,440.04 = 154,389.24/x
  3. Step 3: Cross multiply
    394,285.32x = 591,440.04 × 154,389.24
  4. Step 4: Simplify right side
    394,285.32x = 91,311,978,281.17
  5. Step 5: Solve for x
    x = 91,311,978,281.17/394,285.32
  6. Step 6: Final answer
    x = 231,588.58

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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.