Home / 415,306.35-623,104.07-131,040.77

Finding the Fourth Proportional to 415,306.35, 623,104.07 and 131,040.77

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Solution

The fourth proportional to 415,306.35, 623,104.07 and 131,040.77 is: 196,606.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,306.35 : 623,104.07 = 131,040.77 : x
  2. Step 2: Convert to fraction form
    415,306.35/623,104.07 = 131,040.77/x
  3. Step 3: Cross multiply
    415,306.35x = 623,104.07 × 131,040.77
  4. Step 4: Simplify right side
    415,306.35x = 81,652,033,352.21
  5. Step 5: Solve for x
    x = 81,652,033,352.21/415,306.35
  6. Step 6: Final answer
    x = 196,606.75

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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.