Home / 381,919.56-527,050.50-209,851.46

Finding the Fourth Proportional to 381,919.56, 527,050.50 and 209,851.46

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Solution

The fourth proportional to 381,919.56, 527,050.50 and 209,851.46 is: 289,595.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,919.56 : 527,050.50 = 209,851.46 : x
  2. Step 2: Convert to fraction form
    381,919.56/527,050.50 = 209,851.46/x
  3. Step 3: Cross multiply
    381,919.56x = 527,050.50 × 209,851.46
  4. Step 4: Simplify right side
    381,919.56x = 110,602,315,472.97
  5. Step 5: Solve for x
    x = 110,602,315,472.97/381,919.56
  6. Step 6: Final answer
    x = 289,595.84

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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.