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Finding the Fourth Proportional to 1,652.80, 2,476.96 and 922.88

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Solution

The fourth proportional to 1,652.80, 2,476.96 and 922.88 is: 1,383.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,652.80 : 2,476.96 = 922.88 : x
  2. Step 2: Convert to fraction form
    1,652.80/2,476.96 = 922.88/x
  3. Step 3: Cross multiply
    1,652.80x = 2,476.96 × 922.88
  4. Step 4: Simplify right side
    1,652.80x = 2,285,936.84
  5. Step 5: Solve for x
    x = 2,285,936.84/1,652.80
  6. Step 6: Final answer
    x = 1,383.07

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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.