Home / 1,093,388.80-1,639,305.60-419,209.60

Finding the Fourth Proportional to 1,093,388.80, 1,639,305.60 and 419,209.60

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Solution

The fourth proportional to 1,093,388.80, 1,639,305.60 and 419,209.60 is: 628,516.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,388.80 : 1,639,305.60 = 419,209.60 : x
  2. Step 2: Convert to fraction form
    1,093,388.80/1,639,305.60 = 419,209.60/x
  3. Step 3: Cross multiply
    1,093,388.80x = 1,639,305.60 × 419,209.60
  4. Step 4: Simplify right side
    1,093,388.80x = 687,212,644,853.76
  5. Step 5: Solve for x
    x = 687,212,644,853.76/1,093,388.80
  6. Step 6: Final answer
    x = 628,516.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.