Home / 381,844.80-526,946.40-212,074.56

Finding the Fourth Proportional to 381,844.80, 526,946.40 and 212,074.56

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Solution

The fourth proportional to 381,844.80, 526,946.40 and 212,074.56 is: 292,663.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,844.80 : 526,946.40 = 212,074.56 : x
  2. Step 2: Convert to fraction form
    381,844.80/526,946.40 = 212,074.56/x
  3. Step 3: Cross multiply
    381,844.80x = 526,946.40 × 212,074.56
  4. Step 4: Simplify right side
    381,844.80x = 111,751,925,923.58
  5. Step 5: Solve for x
    x = 111,751,925,923.58/381,844.80
  6. Step 6: Final answer
    x = 292,663.21

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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.