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Finding the Fourth Proportional to 1,480.84, 2,043.28 and 883.52

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Solution

The fourth proportional to 1,480.84, 2,043.28 and 883.52 is: 1,219.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480.84 : 2,043.28 = 883.52 : x
  2. Step 2: Convert to fraction form
    1,480.84/2,043.28 = 883.52/x
  3. Step 3: Cross multiply
    1,480.84x = 2,043.28 × 883.52
  4. Step 4: Simplify right side
    1,480.84x = 1,805,278.75
  5. Step 5: Solve for x
    x = 1,805,278.75/1,480.84
  6. Step 6: Final answer
    x = 1,219.09

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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.