Home / 381,077.80-525,849.47-219,984.75

Finding the Fourth Proportional to 381,077.80, 525,849.47 and 219,984.75

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Solution

The fourth proportional to 381,077.80, 525,849.47 and 219,984.75 is: 303,557.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,077.80 : 525,849.47 = 219,984.75 : x
  2. Step 2: Convert to fraction form
    381,077.80/525,849.47 = 219,984.75/x
  3. Step 3: Cross multiply
    381,077.80x = 525,849.47 × 219,984.75
  4. Step 4: Simplify right side
    381,077.80x = 115,678,860,466.41
  5. Step 5: Solve for x
    x = 115,678,860,466.41/381,077.80
  6. Step 6: Final answer
    x = 303,557.07

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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.