Home / 998,800.44-1,378,019.16-611,211.42

Finding the Fourth Proportional to 998,800.44, 1,378,019.16 and 611,211.42

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Solution

The fourth proportional to 998,800.44, 1,378,019.16 and 611,211.42 is: 843,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,800.44 : 1,378,019.16 = 611,211.42 : x
  2. Step 2: Convert to fraction form
    998,800.44/1,378,019.16 = 611,211.42/x
  3. Step 3: Cross multiply
    998,800.44x = 1,378,019.16 × 611,211.42
  4. Step 4: Simplify right side
    998,800.44x = 842,261,047,570.81
  5. Step 5: Solve for x
    x = 842,261,047,570.81/998,800.44
  6. Step 6: Final answer
    x = 843,272.60

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Double scale
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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.