Home / 381,186.26-526,023.60-211,436.18

Finding the Fourth Proportional to 381,186.26, 526,023.60 and 211,436.18

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Solution

The fourth proportional to 381,186.26, 526,023.60 and 211,436.18 is: 291,774.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,186.26 : 526,023.60 = 211,436.18 : x
  2. Step 2: Convert to fraction form
    381,186.26/526,023.60 = 211,436.18/x
  3. Step 3: Cross multiply
    381,186.26x = 526,023.60 × 211,436.18
  4. Step 4: Simplify right side
    381,186.26x = 111,220,420,573.85
  5. Step 5: Solve for x
    x = 111,220,420,573.85/381,186.26
  6. Step 6: Final answer
    x = 291,774.47

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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.