Home / 919,948.56-1,269,377.56-512,039.94

Finding the Fourth Proportional to 919,948.56, 1,269,377.56 and 512,039.94

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Solution

The fourth proportional to 919,948.56, 1,269,377.56 and 512,039.94 is: 706,530.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,948.56 : 1,269,377.56 = 512,039.94 : x
  2. Step 2: Convert to fraction form
    919,948.56/1,269,377.56 = 512,039.94/x
  3. Step 3: Cross multiply
    919,948.56x = 1,269,377.56 × 512,039.94
  4. Step 4: Simplify right side
    919,948.56x = 649,972,009,659.75
  5. Step 5: Solve for x
    x = 649,972,009,659.75/919,948.56
  6. Step 6: Final answer
    x = 706,530.82

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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.