Home / 2,085,436.20-3,128,154.30-665,635.80

Finding the Fourth Proportional to 2,085,436.20, 3,128,154.30 and 665,635.80

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Solution

The fourth proportional to 2,085,436.20, 3,128,154.30 and 665,635.80 is: 998,453.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085,436.20 : 3,128,154.30 = 665,635.80 : x
  2. Step 2: Convert to fraction form
    2,085,436.20/3,128,154.30 = 665,635.80/x
  3. Step 3: Cross multiply
    2,085,436.20x = 3,128,154.30 × 665,635.80
  4. Step 4: Simplify right side
    2,085,436.20x = 2,082,211,490,003.94
  5. Step 5: Solve for x
    x = 2,082,211,490,003.94/2,085,436.20
  6. Step 6: Final answer
    x = 998,453.70

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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.