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Finding the Fourth Proportional to 347,154.45, 520,059.16 and 196,940.35

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Solution

The fourth proportional to 347,154.45, 520,059.16 and 196,940.35 is: 295,029.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,154.45 : 520,059.16 = 196,940.35 : x
  2. Step 2: Convert to fraction form
    347,154.45/520,059.16 = 196,940.35/x
  3. Step 3: Cross multiply
    347,154.45x = 520,059.16 × 196,940.35
  4. Step 4: Simplify right side
    347,154.45x = 102,420,632,991.11
  5. Step 5: Solve for x
    x = 102,420,632,991.11/347,154.45
  6. Step 6: Final answer
    x = 295,029.01

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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.