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Finding the Fourth Proportional to 358,470.16, 494,412.51 and 222,584.56

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Solution

The fourth proportional to 358,470.16, 494,412.51 and 222,584.56 is: 306,995.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,470.16 : 494,412.51 = 222,584.56 : x
  2. Step 2: Convert to fraction form
    358,470.16/494,412.51 = 222,584.56/x
  3. Step 3: Cross multiply
    358,470.16x = 494,412.51 × 222,584.56
  4. Step 4: Simplify right side
    358,470.16x = 110,048,590,996.85
  5. Step 5: Solve for x
    x = 110,048,590,996.85/358,470.16
  6. Step 6: Final answer
    x = 306,995.12

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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.