Home / 381,825.35-526,888.14-220,690.83

Finding the Fourth Proportional to 381,825.35, 526,888.14 and 220,690.83

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Solution

The fourth proportional to 381,825.35, 526,888.14 and 220,690.83 is: 304,535.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,825.35 : 526,888.14 = 220,690.83 : x
  2. Step 2: Convert to fraction form
    381,825.35/526,888.14 = 220,690.83/x
  3. Step 3: Cross multiply
    381,825.35x = 526,888.14 × 220,690.83
  4. Step 4: Simplify right side
    381,825.35x = 116,279,380,933.76
  5. Step 5: Solve for x
    x = 116,279,380,933.76/381,825.35
  6. Step 6: Final answer
    x = 304,535.52

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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.