Home / 394,943.44-592,451.16-128,635.60

Finding the Fourth Proportional to 394,943.44, 592,451.16 and 128,635.60

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Solution

The fourth proportional to 394,943.44, 592,451.16 and 128,635.60 is: 192,965.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,943.44 : 592,451.16 = 128,635.60 : x
  2. Step 2: Convert to fraction form
    394,943.44/592,451.16 = 128,635.60/x
  3. Step 3: Cross multiply
    394,943.44x = 592,451.16 × 128,635.60
  4. Step 4: Simplify right side
    394,943.44x = 76,210,310,437.30
  5. Step 5: Solve for x
    x = 76,210,310,437.30/394,943.44
  6. Step 6: Final answer
    x = 192,965.13

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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.