Home / 919,949.56-1,269,378.94-512,040.94

Finding the Fourth Proportional to 919,949.56, 1,269,378.94 and 512,040.94

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Solution

The fourth proportional to 919,949.56, 1,269,378.94 and 512,040.94 is: 706,532.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,949.56 : 1,269,378.94 = 512,040.94 : x
  2. Step 2: Convert to fraction form
    919,949.56/1,269,378.94 = 512,040.94/x
  3. Step 3: Cross multiply
    919,949.56x = 1,269,378.94 × 512,040.94
  4. Step 4: Simplify right side
    919,949.56x = 649,973,985,653.80
  5. Step 5: Solve for x
    x = 649,973,985,653.80/919,949.56
  6. Step 6: Final answer
    x = 706,532.20

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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.