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Finding the Fourth Proportional to 379,041.08, 523,072.70 and 206,958.50

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Solution

The fourth proportional to 379,041.08, 523,072.70 and 206,958.50 is: 285,600.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,041.08 : 523,072.70 = 206,958.50 : x
  2. Step 2: Convert to fraction form
    379,041.08/523,072.70 = 206,958.50/x
  3. Step 3: Cross multiply
    379,041.08x = 523,072.70 × 206,958.50
  4. Step 4: Simplify right side
    379,041.08x = 108,254,341,359.48
  5. Step 5: Solve for x
    x = 108,254,341,359.48/379,041.08
  6. Step 6: Final answer
    x = 285,600.55

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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.