Home / 1,211,680.38-1,672,050.69-667,814.52

Finding the Fourth Proportional to 1,211,680.38, 1,672,050.69 and 667,814.52

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Solution

The fourth proportional to 1,211,680.38, 1,672,050.69 and 667,814.52 is: 921,546.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,680.38 : 1,672,050.69 = 667,814.52 : x
  2. Step 2: Convert to fraction form
    1,211,680.38/1,672,050.69 = 667,814.52/x
  3. Step 3: Cross multiply
    1,211,680.38x = 1,672,050.69 × 667,814.52
  4. Step 4: Simplify right side
    1,211,680.38x = 1,116,619,728,958.02
  5. Step 5: Solve for x
    x = 1,116,619,728,958.02/1,211,680.38
  6. Step 6: Final answer
    x = 921,546.43

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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.