Home / 263,030.77-394,595.67-85,588.54

Finding the Fourth Proportional to 263,030.77, 394,595.67 and 85,588.54

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Solution

The fourth proportional to 263,030.77, 394,595.67 and 85,588.54 is: 128,398.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,030.77 : 394,595.67 = 85,588.54 : x
  2. Step 2: Convert to fraction form
    263,030.77/394,595.67 = 85,588.54/x
  3. Step 3: Cross multiply
    263,030.77x = 394,595.67 × 85,588.54
  4. Step 4: Simplify right side
    263,030.77x = 33,772,867,285.62
  5. Step 5: Solve for x
    x = 33,772,867,285.62/263,030.77
  6. Step 6: Final answer
    x = 128,398.92

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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.