Home / 353,083.20-529,457.94-128,286.87

Finding the Fourth Proportional to 353,083.20, 529,457.94 and 128,286.87

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Solution

The fourth proportional to 353,083.20, 529,457.94 and 128,286.87 is: 192,369.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,083.20 : 529,457.94 = 128,286.87 : x
  2. Step 2: Convert to fraction form
    353,083.20/529,457.94 = 128,286.87/x
  3. Step 3: Cross multiply
    353,083.20x = 529,457.94 × 128,286.87
  4. Step 4: Simplify right side
    353,083.20x = 67,922,501,919.25
  5. Step 5: Solve for x
    x = 67,922,501,919.25/353,083.20
  6. Step 6: Final answer
    x = 192,369.68

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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.