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Finding the Fourth Proportional to 1,600.52, 2,399.05 and 776.96

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Solution

The fourth proportional to 1,600.52, 2,399.05 and 776.96 is: 1,164.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,600.52 : 2,399.05 = 776.96 : x
  2. Step 2: Convert to fraction form
    1,600.52/2,399.05 = 776.96/x
  3. Step 3: Cross multiply
    1,600.52x = 2,399.05 × 776.96
  4. Step 4: Simplify right side
    1,600.52x = 1,863,951.95
  5. Step 5: Solve for x
    x = 1,863,951.95/1,600.52
  6. Step 6: Final answer
    x = 1,164.60

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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.