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Finding the Fourth Proportional to 450,804.48, 622,110.44 and 281,039.28

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Solution

The fourth proportional to 450,804.48, 622,110.44 and 281,039.28 is: 387,834.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,804.48 : 622,110.44 = 281,039.28 : x
  2. Step 2: Convert to fraction form
    450,804.48/622,110.44 = 281,039.28/x
  3. Step 3: Cross multiply
    450,804.48x = 622,110.44 × 281,039.28
  4. Step 4: Simplify right side
    450,804.48x = 174,837,470,138.08
  5. Step 5: Solve for x
    x = 174,837,470,138.08/450,804.48
  6. Step 6: Final answer
    x = 387,834.37

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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.