Home / 286,509.06-394,971.90-201,361.86

Finding the Fourth Proportional to 286,509.06, 394,971.90 and 201,361.86

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Solution

The fourth proportional to 286,509.06, 394,971.90 and 201,361.86 is: 277,590.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,509.06 : 394,971.90 = 201,361.86 : x
  2. Step 2: Convert to fraction form
    286,509.06/394,971.90 = 201,361.86/x
  3. Step 3: Cross multiply
    286,509.06x = 394,971.90 × 201,361.86
  4. Step 4: Simplify right side
    286,509.06x = 79,532,276,431.73
  5. Step 5: Solve for x
    x = 79,532,276,431.73/286,509.06
  6. Step 6: Final answer
    x = 277,590.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.