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Finding the Fourth Proportional to 413,428.80, 620,200.80 and 176,769.60

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Solution

The fourth proportional to 413,428.80, 620,200.80 and 176,769.60 is: 265,179.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,428.80 : 620,200.80 = 176,769.60 : x
  2. Step 2: Convert to fraction form
    413,428.80/620,200.80 = 176,769.60/x
  3. Step 3: Cross multiply
    413,428.80x = 620,200.80 × 176,769.60
  4. Step 4: Simplify right side
    413,428.80x = 109,632,647,335.68
  5. Step 5: Solve for x
    x = 109,632,647,335.68/413,428.80
  6. Step 6: Final answer
    x = 265,179.03

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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.