Home / 685,119.06-945,385.43-394,772.94

Finding the Fourth Proportional to 685,119.06, 945,385.43 and 394,772.94

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Solution

The fourth proportional to 685,119.06, 945,385.43 and 394,772.94 is: 544,741.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,119.06 : 945,385.43 = 394,772.94 : x
  2. Step 2: Convert to fraction form
    685,119.06/945,385.43 = 394,772.94/x
  3. Step 3: Cross multiply
    685,119.06x = 945,385.43 × 394,772.94
  4. Step 4: Simplify right side
    685,119.06x = 373,212,583,660.40
  5. Step 5: Solve for x
    x = 373,212,583,660.40/685,119.06
  6. Step 6: Final answer
    x = 544,741.21

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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.