Home / 381,917.59-527,047.77-209,849.50

Finding the Fourth Proportional to 381,917.59, 527,047.77 and 209,849.50

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Solution

The fourth proportional to 381,917.59, 527,047.77 and 209,849.50 is: 289,593.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,917.59 : 527,047.77 = 209,849.50 : x
  2. Step 2: Convert to fraction form
    381,917.59/527,047.77 = 209,849.50/x
  3. Step 3: Cross multiply
    381,917.59x = 527,047.77 × 209,849.50
  4. Step 4: Simplify right side
    381,917.59x = 110,600,711,010.62
  5. Step 5: Solve for x
    x = 110,600,711,010.62/381,917.59
  6. Step 6: Final answer
    x = 289,593.13

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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.