Home / 381,333.18-526,232.79-211,563.66

Finding the Fourth Proportional to 381,333.18, 526,232.79 and 211,563.66

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Solution

The fourth proportional to 381,333.18, 526,232.79 and 211,563.66 is: 291,953.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,333.18 : 526,232.79 = 211,563.66 : x
  2. Step 2: Convert to fraction form
    381,333.18/526,232.79 = 211,563.66/x
  3. Step 3: Cross multiply
    381,333.18x = 526,232.79 × 211,563.66
  4. Step 4: Simplify right side
    381,333.18x = 111,331,735,064.41
  5. Step 5: Solve for x
    x = 111,331,735,064.41/381,333.18
  6. Step 6: Final answer
    x = 291,953.97

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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.