Home / 693,763.53-1,040,824.40-213,980.55

Finding the Fourth Proportional to 693,763.53, 1,040,824.40 and 213,980.55

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Solution

The fourth proportional to 693,763.53, 1,040,824.40 and 213,980.55 is: 321,026.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,763.53 : 1,040,824.40 = 213,980.55 : x
  2. Step 2: Convert to fraction form
    693,763.53/1,040,824.40 = 213,980.55/x
  3. Step 3: Cross multiply
    693,763.53x = 1,040,824.40 × 213,980.55
  4. Step 4: Simplify right side
    693,763.53x = 222,716,177,565.42
  5. Step 5: Solve for x
    x = 222,716,177,565.42/693,763.53
  6. Step 6: Final answer
    x = 321,026.07

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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.