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Finding the Fourth Proportional to 796.95, 1,188.48 and 708.43

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Solution

The fourth proportional to 796.95, 1,188.48 and 708.43 is: 1,056.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.95 : 1,188.48 = 708.43 : x
  2. Step 2: Convert to fraction form
    796.95/1,188.48 = 708.43/x
  3. Step 3: Cross multiply
    796.95x = 1,188.48 × 708.43
  4. Step 4: Simplify right side
    796.95x = 841,954.89
  5. Step 5: Solve for x
    x = 841,954.89/796.95
  6. Step 6: Final answer
    x = 1,056.47

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.