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Finding the Fourth Proportional to 795.64, 1,097.02 and 684.92

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Solution

The fourth proportional to 795.64, 1,097.02 and 684.92 is: 944.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.64 : 1,097.02 = 684.92 : x
  2. Step 2: Convert to fraction form
    795.64/1,097.02 = 684.92/x
  3. Step 3: Cross multiply
    795.64x = 1,097.02 × 684.92
  4. Step 4: Simplify right side
    795.64x = 751,370.94
  5. Step 5: Solve for x
    x = 751,370.94/795.64
  6. Step 6: Final answer
    x = 944.36

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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.