Home / 863,419.40-1,294,610.70-443,515.40

Finding the Fourth Proportional to 863,419.40, 1,294,610.70 and 443,515.40

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Solution

The fourth proportional to 863,419.40, 1,294,610.70 and 443,515.40 is: 665,006.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,419.40 : 1,294,610.70 = 443,515.40 : x
  2. Step 2: Convert to fraction form
    863,419.40/1,294,610.70 = 443,515.40/x
  3. Step 3: Cross multiply
    863,419.40x = 1,294,610.70 × 443,515.40
  4. Step 4: Simplify right side
    863,419.40x = 574,179,782,454.78
  5. Step 5: Solve for x
    x = 574,179,782,454.78/863,419.40
  6. Step 6: Final answer
    x = 665,006.81

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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.