Home / 863,132.40-1,294,180.20-443,228.40

Finding the Fourth Proportional to 863,132.40, 1,294,180.20 and 443,228.40

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Solution

The fourth proportional to 863,132.40, 1,294,180.20 and 443,228.40 is: 664,576.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,132.40 : 1,294,180.20 = 443,228.40 : x
  2. Step 2: Convert to fraction form
    863,132.40/1,294,180.20 = 443,228.40/x
  3. Step 3: Cross multiply
    863,132.40x = 1,294,180.20 × 443,228.40
  4. Step 4: Simplify right side
    863,132.40x = 573,617,419,357.68
  5. Step 5: Solve for x
    x = 573,617,419,357.68/863,132.40
  6. Step 6: Final answer
    x = 664,576.40

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Double scale
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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.