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Finding the Fourth Proportional to 1,024.67, 1,413.99 and 576.55

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Solution

The fourth proportional to 1,024.67, 1,413.99 and 576.55 is: 795.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,024.67 : 1,413.99 = 576.55 : x
  2. Step 2: Convert to fraction form
    1,024.67/1,413.99 = 576.55/x
  3. Step 3: Cross multiply
    1,024.67x = 1,413.99 × 576.55
  4. Step 4: Simplify right side
    1,024.67x = 815,233.50
  5. Step 5: Solve for x
    x = 815,233.50/1,024.67
  6. Step 6: Final answer
    x = 795.61

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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.