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Finding the Fourth Proportional to 313,910.76, 433,197.90 and 170,670.36

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Solution

The fourth proportional to 313,910.76, 433,197.90 and 170,670.36 is: 235,525.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,910.76 : 433,197.90 = 170,670.36 : x
  2. Step 2: Convert to fraction form
    313,910.76/433,197.90 = 170,670.36/x
  3. Step 3: Cross multiply
    313,910.76x = 433,197.90 × 170,670.36
  4. Step 4: Simplify right side
    313,910.76x = 73,934,041,544.24
  5. Step 5: Solve for x
    x = 73,934,041,544.24/313,910.76
  6. Step 6: Final answer
    x = 235,525.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.