Home / 389,977.20-584,512.20-179,636.40

Finding the Fourth Proportional to 389,977.20, 584,512.20 and 179,636.40

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Solution

The fourth proportional to 389,977.20, 584,512.20 and 179,636.40 is: 269,245.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,977.20 : 584,512.20 = 179,636.40 : x
  2. Step 2: Convert to fraction form
    389,977.20/584,512.20 = 179,636.40/x
  3. Step 3: Cross multiply
    389,977.20x = 584,512.20 × 179,636.40
  4. Step 4: Simplify right side
    389,977.20x = 104,999,667,364.08
  5. Step 5: Solve for x
    x = 104,999,667,364.08/389,977.20
  6. Step 6: Final answer
    x = 269,245.66

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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.