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Finding the Fourth Proportional to 353,568.78, 529,653.33 and 309,245.58

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Solution

The fourth proportional to 353,568.78, 529,653.33 and 309,245.58 is: 463,256.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,568.78 : 529,653.33 = 309,245.58 : x
  2. Step 2: Convert to fraction form
    353,568.78/529,653.33 = 309,245.58/x
  3. Step 3: Cross multiply
    353,568.78x = 529,653.33 × 309,245.58
  4. Step 4: Simplify right side
    353,568.78x = 163,792,951,234.78
  5. Step 5: Solve for x
    x = 163,792,951,234.78/353,568.78
  6. Step 6: Final answer
    x = 463,256.26

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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.