Home / 415,823.85-623,812.67-131,585.96

Finding the Fourth Proportional to 415,823.85, 623,812.67 and 131,585.96

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Solution

The fourth proportional to 415,823.85, 623,812.67 and 131,585.96 is: 197,403.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,823.85 : 623,812.67 = 131,585.96 : x
  2. Step 2: Convert to fraction form
    415,823.85/623,812.67 = 131,585.96/x
  3. Step 3: Cross multiply
    415,823.85x = 623,812.67 × 131,585.96
  4. Step 4: Simplify right side
    415,823.85x = 82,084,989,042.11
  5. Step 5: Solve for x
    x = 82,084,989,042.11/415,823.85
  6. Step 6: Final answer
    x = 197,403.27

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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.