Home / 863,416.40-1,294,606.20-443,512.40

Finding the Fourth Proportional to 863,416.40, 1,294,606.20 and 443,512.40

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Solution

The fourth proportional to 863,416.40, 1,294,606.20 and 443,512.40 is: 665,002.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,416.40 : 1,294,606.20 = 443,512.40 : x
  2. Step 2: Convert to fraction form
    863,416.40/1,294,606.20 = 443,512.40/x
  3. Step 3: Cross multiply
    863,416.40x = 1,294,606.20 × 443,512.40
  4. Step 4: Simplify right side
    863,416.40x = 574,173,902,816.88
  5. Step 5: Solve for x
    x = 574,173,902,816.88/863,416.40
  6. Step 6: Final answer
    x = 665,002.31

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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.