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Finding the Fourth Proportional to 1,707.76, 2,560.92 and 733.36

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Solution

The fourth proportional to 1,707.76, 2,560.92 and 733.36 is: 1,099.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707.76 : 2,560.92 = 733.36 : x
  2. Step 2: Convert to fraction form
    1,707.76/2,560.92 = 733.36/x
  3. Step 3: Cross multiply
    1,707.76x = 2,560.92 × 733.36
  4. Step 4: Simplify right side
    1,707.76x = 1,878,076.29
  5. Step 5: Solve for x
    x = 1,878,076.29/1,707.76
  6. Step 6: Final answer
    x = 1,099.73

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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.