Home / 394,949.22-592,485.34-128,647.82

Finding the Fourth Proportional to 394,949.22, 592,485.34 and 128,647.82

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Solution

The fourth proportional to 394,949.22, 592,485.34 and 128,647.82 is: 192,991.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,949.22 : 592,485.34 = 128,647.82 : x
  2. Step 2: Convert to fraction form
    394,949.22/592,485.34 = 128,647.82/x
  3. Step 3: Cross multiply
    394,949.22x = 592,485.34 × 128,647.82
  4. Step 4: Simplify right side
    394,949.22x = 76,221,947,372.96
  5. Step 5: Solve for x
    x = 76,221,947,372.96/394,949.22
  6. Step 6: Final answer
    x = 192,991.77

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1.5x scale

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.