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Finding the Fourth Proportional to 968.11, 1,335.49 and 652.95

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Solution

The fourth proportional to 968.11, 1,335.49 and 652.95 is: 900.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.11 : 1,335.49 = 652.95 : x
  2. Step 2: Convert to fraction form
    968.11/1,335.49 = 652.95/x
  3. Step 3: Cross multiply
    968.11x = 1,335.49 × 652.95
  4. Step 4: Simplify right side
    968.11x = 872,006.56
  5. Step 5: Solve for x
    x = 872,006.56/968.11
  6. Step 6: Final answer
    x = 900.73

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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.