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Finding the Fourth Proportional to 1,023.05, 1,413.11 and 793.01

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Solution

The fourth proportional to 1,023.05, 1,413.11 and 793.01 is: 1,095.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,023.05 : 1,413.11 = 793.01 : x
  2. Step 2: Convert to fraction form
    1,023.05/1,413.11 = 793.01/x
  3. Step 3: Cross multiply
    1,023.05x = 1,413.11 × 793.01
  4. Step 4: Simplify right side
    1,023.05x = 1,120,606.40
  5. Step 5: Solve for x
    x = 1,120,606.40/1,023.05
  6. Step 6: Final answer
    x = 1,095.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.