Home / 381,436.20-526,385.10-211,673.16

Finding the Fourth Proportional to 381,436.20, 526,385.10 and 211,673.16

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Solution

The fourth proportional to 381,436.20, 526,385.10 and 211,673.16 is: 292,110.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,436.20 : 526,385.10 = 211,673.16 : x
  2. Step 2: Convert to fraction form
    381,436.20/526,385.10 = 211,673.16/x
  3. Step 3: Cross multiply
    381,436.20x = 526,385.10 × 211,673.16
  4. Step 4: Simplify right side
    381,436.20x = 111,421,597,493.92
  5. Step 5: Solve for x
    x = 111,421,597,493.92/381,436.20
  6. Step 6: Final answer
    x = 292,110.71

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1.5x scale

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.