Home / 1,453,128.20-2,179,433.10-919,694.60

Finding the Fourth Proportional to 1,453,128.20, 2,179,433.10 and 919,694.60

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Solution

The fourth proportional to 1,453,128.20, 2,179,433.10 and 919,694.60 is: 1,379,377.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,453,128.20 : 2,179,433.10 = 919,694.60 : x
  2. Step 2: Convert to fraction form
    1,453,128.20/2,179,433.10 = 919,694.60/x
  3. Step 3: Cross multiply
    1,453,128.20x = 2,179,433.10 × 919,694.60
  4. Step 4: Simplify right side
    1,453,128.20x = 2,004,412,853,131.26
  5. Step 5: Solve for x
    x = 2,004,412,853,131.26/1,453,128.20
  6. Step 6: Final answer
    x = 1,379,377.85

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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.