Home / 412,640.06-619,138.28-223,233.86

Finding the Fourth Proportional to 412,640.06, 619,138.28 and 223,233.86

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Solution

The fourth proportional to 412,640.06, 619,138.28 and 223,233.86 is: 334,947.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,640.06 : 619,138.28 = 223,233.86 : x
  2. Step 2: Convert to fraction form
    412,640.06/619,138.28 = 223,233.86/x
  3. Step 3: Cross multiply
    412,640.06x = 619,138.28 × 223,233.86
  4. Step 4: Simplify right side
    412,640.06x = 138,212,628,245.64
  5. Step 5: Solve for x
    x = 138,212,628,245.64/412,640.06
  6. Step 6: Final answer
    x = 334,947.19

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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.