Home / 1,620,990.38-2,236,973.67-885,959.45

Finding the Fourth Proportional to 1,620,990.38, 2,236,973.67 and 885,959.45

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Solution

The fourth proportional to 1,620,990.38, 2,236,973.67 and 885,959.45 is: 1,222,627.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,990.38 : 2,236,973.67 = 885,959.45 : x
  2. Step 2: Convert to fraction form
    1,620,990.38/2,236,973.67 = 885,959.45/x
  3. Step 3: Cross multiply
    1,620,990.38x = 2,236,973.67 × 885,959.45
  4. Step 4: Simplify right side
    1,620,990.38x = 1,981,867,957,907.88
  5. Step 5: Solve for x
    x = 1,981,867,957,907.88/1,620,990.38
  6. Step 6: Final answer
    x = 1,222,627.84

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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.