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Finding the Fourth Proportional to 1,362.98, 2,044.54 and 670.22

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Solution

The fourth proportional to 1,362.98, 2,044.54 and 670.22 is: 1,005.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362.98 : 2,044.54 = 670.22 : x
  2. Step 2: Convert to fraction form
    1,362.98/2,044.54 = 670.22/x
  3. Step 3: Cross multiply
    1,362.98x = 2,044.54 × 670.22
  4. Step 4: Simplify right side
    1,362.98x = 1,370,291.60
  5. Step 5: Solve for x
    x = 1,370,291.60/1,362.98
  6. Step 6: Final answer
    x = 1,005.36

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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.