Home / 1,211,622.28-1,672,033.25-667,756.88

Finding the Fourth Proportional to 1,211,622.28, 1,672,033.25 and 667,756.88

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Solution

The fourth proportional to 1,211,622.28, 1,672,033.25 and 667,756.88 is: 921,501.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,622.28 : 1,672,033.25 = 667,756.88 : x
  2. Step 2: Convert to fraction form
    1,211,622.28/1,672,033.25 = 667,756.88/x
  3. Step 3: Cross multiply
    1,211,622.28x = 1,672,033.25 × 667,756.88
  4. Step 4: Simplify right side
    1,211,622.28x = 1,116,511,706,276.26
  5. Step 5: Solve for x
    x = 1,116,511,706,276.26/1,211,622.28
  6. Step 6: Final answer
    x = 921,501.47

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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.