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Finding the Fourth Proportional to 493,858.94, 681,515.37 and 276,066.54

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Solution

The fourth proportional to 493,858.94, 681,515.37 and 276,066.54 is: 380,966.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,858.94 : 681,515.37 = 276,066.54 : x
  2. Step 2: Convert to fraction form
    493,858.94/681,515.37 = 276,066.54/x
  3. Step 3: Cross multiply
    493,858.94x = 681,515.37 × 276,066.54
  4. Step 4: Simplify right side
    493,858.94x = 188,143,590,152.72
  5. Step 5: Solve for x
    x = 188,143,590,152.72/493,858.94
  6. Step 6: Final answer
    x = 380,966.26

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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.