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Finding the Fourth Proportional to 445,805.19, 668,552.27 and 196,351.11

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Solution

The fourth proportional to 445,805.19, 668,552.27 and 196,351.11 is: 294,458.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,805.19 : 668,552.27 = 196,351.11 : x
  2. Step 2: Convert to fraction form
    445,805.19/668,552.27 = 196,351.11/x
  3. Step 3: Cross multiply
    445,805.19x = 668,552.27 × 196,351.11
  4. Step 4: Simplify right side
    445,805.19x = 131,270,979,325.76
  5. Step 5: Solve for x
    x = 131,270,979,325.76/445,805.19
  6. Step 6: Final answer
    x = 294,458.17

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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.