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Finding the Fourth Proportional to 796.64, 1,193.76 and 471.36

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Solution

The fourth proportional to 796.64, 1,193.76 and 471.36 is: 706.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.64 : 1,193.76 = 471.36 : x
  2. Step 2: Convert to fraction form
    796.64/1,193.76 = 471.36/x
  3. Step 3: Cross multiply
    796.64x = 1,193.76 × 471.36
  4. Step 4: Simplify right side
    796.64x = 562,690.71
  5. Step 5: Solve for x
    x = 562,690.71/796.64
  6. Step 6: Final answer
    x = 706.33

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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.