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Finding the Fourth Proportional to 1,748.97, 2,413.56 and 963

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Solution

The fourth proportional to 1,748.97, 2,413.56 and 963 is: 1,328.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.97 : 2,413.56 = 963 : x
  2. Step 2: Convert to fraction form
    1,748.97/2,413.56 = 963/x
  3. Step 3: Cross multiply
    1,748.97x = 2,413.56 × 963
  4. Step 4: Simplify right side
    1,748.97x = 2,324,261.89
  5. Step 5: Solve for x
    x = 2,324,261.89/1,748.97
  6. Step 6: Final answer
    x = 1,328.93

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1.5x scale

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.