Home / 394,113.48-539,937.43-379,353.36

Finding the Fourth Proportional to 394,113.48, 539,937.43 and 379,353.36

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Solution

The fourth proportional to 394,113.48, 539,937.43 and 379,353.36 is: 519,715.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,113.48 : 539,937.43 = 379,353.36 : x
  2. Step 2: Convert to fraction form
    394,113.48/539,937.43 = 379,353.36/x
  3. Step 3: Cross multiply
    394,113.48x = 539,937.43 × 379,353.36
  4. Step 4: Simplify right side
    394,113.48x = 204,827,073,663.81
  5. Step 5: Solve for x
    x = 204,827,073,663.81/394,113.48
  6. Step 6: Final answer
    x = 519,715.98

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.