Home / 2,191,121.40-3,292,211.70-1,392,785.40

Finding the Fourth Proportional to 2,191,121.40, 3,292,211.70 and 1,392,785.40

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Solution

The fourth proportional to 2,191,121.40, 3,292,211.70 and 1,392,785.40 is: 2,092,692.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191,121.40 : 3,292,211.70 = 1,392,785.40 : x
  2. Step 2: Convert to fraction form
    2,191,121.40/3,292,211.70 = 1,392,785.40/x
  3. Step 3: Cross multiply
    2,191,121.40x = 3,292,211.70 × 1,392,785.40
  4. Step 4: Simplify right side
    2,191,121.40x = 4,585,344,389,469.18
  5. Step 5: Solve for x
    x = 4,585,344,389,469.18/2,191,121.40
  6. Step 6: Final answer
    x = 2,092,692.99

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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.