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Finding the Fourth Proportional to 370,744.57, 511,622.88 and 217,796.69

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Solution

The fourth proportional to 370,744.57, 511,622.88 and 217,796.69 is: 300,556.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,744.57 : 511,622.88 = 217,796.69 : x
  2. Step 2: Convert to fraction form
    370,744.57/511,622.88 = 217,796.69/x
  3. Step 3: Cross multiply
    370,744.57x = 511,622.88 × 217,796.69
  4. Step 4: Simplify right side
    370,744.57x = 111,429,772,049.65
  5. Step 5: Solve for x
    x = 111,429,772,049.65/370,744.57
  6. Step 6: Final answer
    x = 300,556.72

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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.