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Finding the Fourth Proportional to 1,753.92, 2,420.43 and 968.00

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Solution

The fourth proportional to 1,753.92, 2,420.43 and 968.00 is: 1,335.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753.92 : 2,420.43 = 968.00 : x
  2. Step 2: Convert to fraction form
    1,753.92/2,420.43 = 968.00/x
  3. Step 3: Cross multiply
    1,753.92x = 2,420.43 × 968.00
  4. Step 4: Simplify right side
    1,753.92x = 2,342,959.30
  5. Step 5: Solve for x
    x = 2,342,959.30/1,753.92
  6. Step 6: Final answer
    x = 1,335.84

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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.