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Finding the Fourth Proportional to 469,183.07, 648,010.72 and 308,754.32

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Solution

The fourth proportional to 469,183.07, 648,010.72 and 308,754.32 is: 426,435.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,183.07 : 648,010.72 = 308,754.32 : x
  2. Step 2: Convert to fraction form
    469,183.07/648,010.72 = 308,754.32/x
  3. Step 3: Cross multiply
    469,183.07x = 648,010.72 × 308,754.32
  4. Step 4: Simplify right side
    469,183.07x = 200,076,110,865.63
  5. Step 5: Solve for x
    x = 200,076,110,865.63/469,183.07
  6. Step 6: Final answer
    x = 426,435.06

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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.