Home / 919,786.07-1,269,332.99-511,910.57

Finding the Fourth Proportional to 919,786.07, 1,269,332.99 and 511,910.57

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Solution

The fourth proportional to 919,786.07, 1,269,332.99 and 511,910.57 is: 706,452.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,786.07 : 1,269,332.99 = 511,910.57 : x
  2. Step 2: Convert to fraction form
    919,786.07/1,269,332.99 = 511,910.57/x
  3. Step 3: Cross multiply
    919,786.07x = 1,269,332.99 × 511,910.57
  4. Step 4: Simplify right side
    919,786.07x = 649,784,974,430.70
  5. Step 5: Solve for x
    x = 649,784,974,430.70/919,786.07
  6. Step 6: Final answer
    x = 706,452.29

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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.