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Finding the Fourth Proportional to 382,896.82, 528,388.93 and 239,735.86

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Solution

The fourth proportional to 382,896.82, 528,388.93 and 239,735.86 is: 330,830.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,896.82 : 528,388.93 = 239,735.86 : x
  2. Step 2: Convert to fraction form
    382,896.82/528,388.93 = 239,735.86/x
  3. Step 3: Cross multiply
    382,896.82x = 528,388.93 × 239,735.86
  4. Step 4: Simplify right side
    382,896.82x = 126,673,774,548.03
  5. Step 5: Solve for x
    x = 126,673,774,548.03/382,896.82
  6. Step 6: Final answer
    x = 330,830.05

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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.