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Finding the Fourth Proportional to 956.94, 1,436.85 and 546.54

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Solution

The fourth proportional to 956.94, 1,436.85 and 546.54 is: 820.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.94 : 1,436.85 = 546.54 : x
  2. Step 2: Convert to fraction form
    956.94/1,436.85 = 546.54/x
  3. Step 3: Cross multiply
    956.94x = 1,436.85 × 546.54
  4. Step 4: Simplify right side
    956.94x = 785,296.00
  5. Step 5: Solve for x
    x = 785,296.00/956.94
  6. Step 6: Final answer
    x = 820.63

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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.