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Finding the Fourth Proportional to 1,704.84, 2,557.74 and 609.36

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Solution

The fourth proportional to 1,704.84, 2,557.74 and 609.36 is: 914.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,704.84 : 2,557.74 = 609.36 : x
  2. Step 2: Convert to fraction form
    1,704.84/2,557.74 = 609.36/x
  3. Step 3: Cross multiply
    1,704.84x = 2,557.74 × 609.36
  4. Step 4: Simplify right side
    1,704.84x = 1,558,584.45
  5. Step 5: Solve for x
    x = 1,558,584.45/1,704.84
  6. Step 6: Final answer
    x = 914.21

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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.