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Finding the Fourth Proportional to 493,794.88, 681,434.82 and 276,003.26

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Solution

The fourth proportional to 493,794.88, 681,434.82 and 276,003.26 is: 380,883.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,794.88 : 681,434.82 = 276,003.26 : x
  2. Step 2: Convert to fraction form
    493,794.88/681,434.82 = 276,003.26/x
  3. Step 3: Cross multiply
    493,794.88x = 681,434.82 × 276,003.26
  4. Step 4: Simplify right side
    493,794.88x = 188,078,231,797.51
  5. Step 5: Solve for x
    x = 188,078,231,797.51/493,794.88
  6. Step 6: Final answer
    x = 380,883.32

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1.5x scale

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.