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Finding the Fourth Proportional to 1,413.78, 2,119.50 and 592.68

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Solution

The fourth proportional to 1,413.78, 2,119.50 and 592.68 is: 888.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,413.78 : 2,119.50 = 592.68 : x
  2. Step 2: Convert to fraction form
    1,413.78/2,119.50 = 592.68/x
  3. Step 3: Cross multiply
    1,413.78x = 2,119.50 × 592.68
  4. Step 4: Simplify right side
    1,413.78x = 1,256,185.26
  5. Step 5: Solve for x
    x = 1,256,185.26/1,413.78
  6. Step 6: Final answer
    x = 888.53

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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.