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Finding the Fourth Proportional to 1,335.68, 2,003.12 and 566

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Solution

The fourth proportional to 1,335.68, 2,003.12 and 566 is: 848.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335.68 : 2,003.12 = 566 : x
  2. Step 2: Convert to fraction form
    1,335.68/2,003.12 = 566/x
  3. Step 3: Cross multiply
    1,335.68x = 2,003.12 × 566
  4. Step 4: Simplify right side
    1,335.68x = 1,133,765.92
  5. Step 5: Solve for x
    x = 1,133,765.92/1,335.68
  6. Step 6: Final answer
    x = 848.83

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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.