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Finding the Fourth Proportional to 325,138.59, 486,510.50 and 196,596.45

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Solution

The fourth proportional to 325,138.59, 486,510.50 and 196,596.45 is: 294,170.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,138.59 : 486,510.50 = 196,596.45 : x
  2. Step 2: Convert to fraction form
    325,138.59/486,510.50 = 196,596.45/x
  3. Step 3: Cross multiply
    325,138.59x = 486,510.50 × 196,596.45
  4. Step 4: Simplify right side
    325,138.59x = 95,646,237,679.22
  5. Step 5: Solve for x
    x = 95,646,237,679.22/325,138.59
  6. Step 6: Final answer
    x = 294,170.67

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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.