Home / 998,838.02-1,378,082.40-611,249.38

Finding the Fourth Proportional to 998,838.02, 1,378,082.40 and 611,249.38

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Solution

The fourth proportional to 998,838.02, 1,378,082.40 and 611,249.38 is: 843,331.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,838.02 : 1,378,082.40 = 611,249.38 : x
  2. Step 2: Convert to fraction form
    998,838.02/1,378,082.40 = 611,249.38/x
  3. Step 3: Cross multiply
    998,838.02x = 1,378,082.40 × 611,249.38
  4. Step 4: Simplify right side
    998,838.02x = 842,352,012,588.91
  5. Step 5: Solve for x
    x = 842,352,012,588.91/998,838.02
  6. Step 6: Final answer
    x = 843,331.95

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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.