Home / 863,999.90-1,295,999.85-443,318.30

Finding the Fourth Proportional to 863,999.90, 1,295,999.85 and 443,318.30

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Solution

The fourth proportional to 863,999.90, 1,295,999.85 and 443,318.30 is: 664,977.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,999.90 : 1,295,999.85 = 443,318.30 : x
  2. Step 2: Convert to fraction form
    863,999.90/1,295,999.85 = 443,318.30/x
  3. Step 3: Cross multiply
    863,999.90x = 1,295,999.85 × 443,318.30
  4. Step 4: Simplify right side
    863,999.90x = 574,540,450,302.26
  5. Step 5: Solve for x
    x = 574,540,450,302.26/863,999.90
  6. Step 6: Final answer
    x = 664,977.45

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Similar ratio
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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.