Home / 397,938.96-596,784.60-131,639.76

Finding the Fourth Proportional to 397,938.96, 596,784.60 and 131,639.76

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Solution

The fourth proportional to 397,938.96, 596,784.60 and 131,639.76 is: 197,418.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,938.96 : 596,784.60 = 131,639.76 : x
  2. Step 2: Convert to fraction form
    397,938.96/596,784.60 = 131,639.76/x
  3. Step 3: Cross multiply
    397,938.96x = 596,784.60 × 131,639.76
  4. Step 4: Simplify right side
    397,938.96x = 78,560,581,515.70
  5. Step 5: Solve for x
    x = 78,560,581,515.70/397,938.96
  6. Step 6: Final answer
    x = 197,418.67

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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.