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Finding the Fourth Proportional to 1,936.54, 2,904.80 and 703.94

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Solution

The fourth proportional to 1,936.54, 2,904.80 and 703.94 is: 1,055.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.54 : 2,904.80 = 703.94 : x
  2. Step 2: Convert to fraction form
    1,936.54/2,904.80 = 703.94/x
  3. Step 3: Cross multiply
    1,936.54x = 2,904.80 × 703.94
  4. Step 4: Simplify right side
    1,936.54x = 2,044,804.91
  5. Step 5: Solve for x
    x = 2,044,804.91/1,936.54
  6. Step 6: Final answer
    x = 1,055.91

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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.