Home / 998,861.78-1,378,102.58-611,273.15

Finding the Fourth Proportional to 998,861.78, 1,378,102.58 and 611,273.15

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Solution

The fourth proportional to 998,861.78, 1,378,102.58 and 611,273.15 is: 843,357.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,861.78 : 1,378,102.58 = 611,273.15 : x
  2. Step 2: Convert to fraction form
    998,861.78/1,378,102.58 = 611,273.15/x
  3. Step 3: Cross multiply
    998,861.78x = 1,378,102.58 × 611,273.15
  4. Step 4: Simplify right side
    998,861.78x = 842,397,102,613.01
  5. Step 5: Solve for x
    x = 842,397,102,613.01/998,861.78
  6. Step 6: Final answer
    x = 843,357.03

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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.