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Finding the Fourth Proportional to 797.99, 1,194.48 and 553.77

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Solution

The fourth proportional to 797.99, 1,194.48 and 553.77 is: 828.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    797.99 : 1,194.48 = 553.77 : x
  2. Step 2: Convert to fraction form
    797.99/1,194.48 = 553.77/x
  3. Step 3: Cross multiply
    797.99x = 1,194.48 × 553.77
  4. Step 4: Simplify right side
    797.99x = 661,467.19
  5. Step 5: Solve for x
    x = 661,467.19/797.99
  6. Step 6: Final answer
    x = 828.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.