Home / 381,825.64-526,911.78-212,053.96

Finding the Fourth Proportional to 381,825.64, 526,911.78 and 212,053.96

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Solution

The fourth proportional to 381,825.64, 526,911.78 and 212,053.96 is: 292,630.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,825.64 : 526,911.78 = 212,053.96 : x
  2. Step 2: Convert to fraction form
    381,825.64/526,911.78 = 212,053.96/x
  3. Step 3: Cross multiply
    381,825.64x = 526,911.78 × 212,053.96
  4. Step 4: Simplify right side
    381,825.64x = 111,733,729,519.65
  5. Step 5: Solve for x
    x = 111,733,729,519.65/381,825.64
  6. Step 6: Final answer
    x = 292,630.24

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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.