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Finding the Fourth Proportional to 1,703.73, 2,554.54 and 729

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Solution

The fourth proportional to 1,703.73, 2,554.54 and 729 is: 1,093.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,703.73 : 2,554.54 = 729 : x
  2. Step 2: Convert to fraction form
    1,703.73/2,554.54 = 729/x
  3. Step 3: Cross multiply
    1,703.73x = 2,554.54 × 729
  4. Step 4: Simplify right side
    1,703.73x = 1,862,257.84
  5. Step 5: Solve for x
    x = 1,862,257.84/1,703.73
  6. Step 6: Final answer
    x = 1,093.05

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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.