Home / 863,999.70-1,296,647.55-443,058.90

Finding the Fourth Proportional to 863,999.70, 1,296,647.55 and 443,058.90

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Solution

The fourth proportional to 863,999.70, 1,296,647.55 and 443,058.90 is: 664,920.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,999.70 : 1,296,647.55 = 443,058.90 : x
  2. Step 2: Convert to fraction form
    863,999.70/1,296,647.55 = 443,058.90/x
  3. Step 3: Cross multiply
    863,999.70x = 1,296,647.55 × 443,058.90
  4. Step 4: Simplify right side
    863,999.70x = 574,491,237,190.70
  5. Step 5: Solve for x
    x = 574,491,237,190.70/863,999.70
  6. Step 6: Final answer
    x = 664,920.64

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1.5x scale

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.