Home / 656,440.39-905,903.75-366,049.12

Finding the Fourth Proportional to 656,440.39, 905,903.75 and 366,049.12

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Solution

The fourth proportional to 656,440.39, 905,903.75 and 366,049.12 is: 505,156.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,440.39 : 905,903.75 = 366,049.12 : x
  2. Step 2: Convert to fraction form
    656,440.39/905,903.75 = 366,049.12/x
  3. Step 3: Cross multiply
    656,440.39x = 905,903.75 × 366,049.12
  4. Step 4: Simplify right side
    656,440.39x = 331,605,266,757.65
  5. Step 5: Solve for x
    x = 331,605,266,757.65/656,440.39
  6. Step 6: Final answer
    x = 505,156.71

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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.