Home / 998,803.44-1,378,023.30-611,214.42

Finding the Fourth Proportional to 998,803.44, 1,378,023.30 and 611,214.42

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Solution

The fourth proportional to 998,803.44, 1,378,023.30 and 611,214.42 is: 843,276.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,803.44 : 1,378,023.30 = 611,214.42 : x
  2. Step 2: Convert to fraction form
    998,803.44/1,378,023.30 = 611,214.42/x
  3. Step 3: Cross multiply
    998,803.44x = 1,378,023.30 × 611,214.42
  4. Step 4: Simplify right side
    998,803.44x = 842,267,712,055.99
  5. Step 5: Solve for x
    x = 842,267,712,055.99/998,803.44
  6. Step 6: Final answer
    x = 843,276.74

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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.