Home / 578,218.20-867,716.10-262,512.60

Finding the Fourth Proportional to 578,218.20, 867,716.10 and 262,512.60

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Solution

The fourth proportional to 578,218.20, 867,716.10 and 262,512.60 is: 393,945.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,218.20 : 867,716.10 = 262,512.60 : x
  2. Step 2: Convert to fraction form
    578,218.20/867,716.10 = 262,512.60/x
  3. Step 3: Cross multiply
    578,218.20x = 867,716.10 × 262,512.60
  4. Step 4: Simplify right side
    578,218.20x = 227,786,409,472.86
  5. Step 5: Solve for x
    x = 227,786,409,472.86/578,218.20
  6. Step 6: Final answer
    x = 393,945.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.