Home / 868,561.62-1,303,105.82-419,198.73

Finding the Fourth Proportional to 868,561.62, 1,303,105.82 and 419,198.73

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Solution

The fourth proportional to 868,561.62, 1,303,105.82 and 419,198.73 is: 628,925.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,561.62 : 1,303,105.82 = 419,198.73 : x
  2. Step 2: Convert to fraction form
    868,561.62/1,303,105.82 = 419,198.73/x
  3. Step 3: Cross multiply
    868,561.62x = 1,303,105.82 × 419,198.73
  4. Step 4: Simplify right side
    868,561.62x = 546,260,302,703.62
  5. Step 5: Solve for x
    x = 546,260,302,703.62/868,561.62
  6. Step 6: Final answer
    x = 628,925.21

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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.