Home / 381,736.80-526,793.76-211,971.36

Finding the Fourth Proportional to 381,736.80, 526,793.76 and 211,971.36

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Solution

The fourth proportional to 381,736.80, 526,793.76 and 211,971.36 is: 292,518.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,736.80 : 526,793.76 = 211,971.36 : x
  2. Step 2: Convert to fraction form
    381,736.80/526,793.76 = 211,971.36/x
  3. Step 3: Cross multiply
    381,736.80x = 526,793.76 × 211,971.36
  4. Step 4: Simplify right side
    381,736.80x = 111,665,189,746.71
  5. Step 5: Solve for x
    x = 111,665,189,746.71/381,736.80
  6. Step 6: Final answer
    x = 292,518.80

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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.