Home / 415,822.85-623,811.17-131,584.96

Finding the Fourth Proportional to 415,822.85, 623,811.17 and 131,584.96

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Solution

The fourth proportional to 415,822.85, 623,811.17 and 131,584.96 is: 197,401.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,822.85 : 623,811.17 = 131,584.96 : x
  2. Step 2: Convert to fraction form
    415,822.85/623,811.17 = 131,584.96/x
  3. Step 3: Cross multiply
    415,822.85x = 623,811.17 × 131,584.96
  4. Step 4: Simplify right side
    415,822.85x = 82,084,164,619.10
  5. Step 5: Solve for x
    x = 82,084,164,619.10/415,822.85
  6. Step 6: Final answer
    x = 197,401.76

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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.