Home / 693,764.53-1,040,825.90-213,981.55

Finding the Fourth Proportional to 693,764.53, 1,040,825.90 and 213,981.55

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Solution

The fourth proportional to 693,764.53, 1,040,825.90 and 213,981.55 is: 321,027.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,764.53 : 1,040,825.90 = 213,981.55 : x
  2. Step 2: Convert to fraction form
    693,764.53/1,040,825.90 = 213,981.55/x
  3. Step 3: Cross multiply
    693,764.53x = 1,040,825.90 × 213,981.55
  4. Step 4: Simplify right side
    693,764.53x = 222,717,539,362.15
  5. Step 5: Solve for x
    x = 222,717,539,362.15/693,764.53
  6. Step 6: Final answer
    x = 321,027.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.