Home / 394,773.09-592,097.86-128,531.81

Finding the Fourth Proportional to 394,773.09, 592,097.86 and 128,531.81

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Solution

The fourth proportional to 394,773.09, 592,097.86 and 128,531.81 is: 192,777.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,773.09 : 592,097.86 = 128,531.81 : x
  2. Step 2: Convert to fraction form
    394,773.09/592,097.86 = 128,531.81/x
  3. Step 3: Cross multiply
    394,773.09x = 592,097.86 × 128,531.81
  4. Step 4: Simplify right side
    394,773.09x = 76,103,409,000.27
  5. Step 5: Solve for x
    x = 76,103,409,000.27/394,773.09
  6. Step 6: Final answer
    x = 192,777.60

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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.