Home / 394,113.23-539,937.08-379,353.11

Finding the Fourth Proportional to 394,113.23, 539,937.08 and 379,353.11

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Solution

The fourth proportional to 394,113.23, 539,937.08 and 379,353.11 is: 519,715.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,113.23 : 539,937.08 = 379,353.11 : x
  2. Step 2: Convert to fraction form
    394,113.23/539,937.08 = 379,353.11/x
  3. Step 3: Cross multiply
    394,113.23x = 539,937.08 × 379,353.11
  4. Step 4: Simplify right side
    394,113.23x = 204,826,808,751.02
  5. Step 5: Solve for x
    x = 204,826,808,751.02/394,113.23
  6. Step 6: Final answer
    x = 519,715.64

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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.