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Finding the Fourth Proportional to 1,740.48, 2,608.20 and 969.36

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Solution

The fourth proportional to 1,740.48, 2,608.20 and 969.36 is: 1,452.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,740.48 : 2,608.20 = 969.36 : x
  2. Step 2: Convert to fraction form
    1,740.48/2,608.20 = 969.36/x
  3. Step 3: Cross multiply
    1,740.48x = 2,608.20 × 969.36
  4. Step 4: Simplify right side
    1,740.48x = 2,528,284.75
  5. Step 5: Solve for x
    x = 2,528,284.75/1,740.48
  6. Step 6: Final answer
    x = 1,452.64

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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.