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Finding the Fourth Proportional to 1,767.88, 2,651.75 and 469.36

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Solution

The fourth proportional to 1,767.88, 2,651.75 and 469.36 is: 704.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,767.88 : 2,651.75 = 469.36 : x
  2. Step 2: Convert to fraction form
    1,767.88/2,651.75 = 469.36/x
  3. Step 3: Cross multiply
    1,767.88x = 2,651.75 × 469.36
  4. Step 4: Simplify right side
    1,767.88x = 1,244,625.38
  5. Step 5: Solve for x
    x = 1,244,625.38/1,767.88
  6. Step 6: Final answer
    x = 704.02

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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.