Home / 863,418.40-1,294,609.20-443,514.40

Finding the Fourth Proportional to 863,418.40, 1,294,609.20 and 443,514.40

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Solution

The fourth proportional to 863,418.40, 1,294,609.20 and 443,514.40 is: 665,005.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,418.40 : 1,294,609.20 = 443,514.40 : x
  2. Step 2: Convert to fraction form
    863,418.40/1,294,609.20 = 443,514.40/x
  3. Step 3: Cross multiply
    863,418.40x = 1,294,609.20 × 443,514.40
  4. Step 4: Simplify right side
    863,418.40x = 574,177,822,572.48
  5. Step 5: Solve for x
    x = 574,177,822,572.48/863,418.40
  6. Step 6: Final answer
    x = 665,005.31

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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.