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Finding the Fourth Proportional to 1,163.93, 1,746.12 and 505.80

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Solution

The fourth proportional to 1,163.93, 1,746.12 and 505.80 is: 758.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163.93 : 1,746.12 = 505.80 : x
  2. Step 2: Convert to fraction form
    1,163.93/1,746.12 = 505.80/x
  3. Step 3: Cross multiply
    1,163.93x = 1,746.12 × 505.80
  4. Step 4: Simplify right side
    1,163.93x = 883,187.50
  5. Step 5: Solve for x
    x = 883,187.50/1,163.93
  6. Step 6: Final answer
    x = 758.80

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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.