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Finding the Fourth Proportional to 450,847.35, 622,018.31 and 259,856.64

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Solution

The fourth proportional to 450,847.35, 622,018.31 and 259,856.64 is: 358,515.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,847.35 : 622,018.31 = 259,856.64 : x
  2. Step 2: Convert to fraction form
    450,847.35/622,018.31 = 259,856.64/x
  3. Step 3: Cross multiply
    450,847.35x = 622,018.31 × 259,856.64
  4. Step 4: Simplify right side
    450,847.35x = 161,635,586,755.80
  5. Step 5: Solve for x
    x = 161,635,586,755.80/450,847.35
  6. Step 6: Final answer
    x = 358,515.11

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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.