Home / 919,849.12-1,269,433.60-511,977.04

Finding the Fourth Proportional to 919,849.12, 1,269,433.60 and 511,977.04

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Solution

The fourth proportional to 919,849.12, 1,269,433.60 and 511,977.04 is: 706,551.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,849.12 : 1,269,433.60 = 511,977.04 : x
  2. Step 2: Convert to fraction form
    919,849.12/1,269,433.60 = 511,977.04/x
  3. Step 3: Cross multiply
    919,849.12x = 1,269,433.60 × 511,977.04
  4. Step 4: Simplify right side
    919,849.12x = 649,920,857,004.54
  5. Step 5: Solve for x
    x = 649,920,857,004.54/919,849.12
  6. Step 6: Final answer
    x = 706,551.59

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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.