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Finding the Fourth Proportional to 1,668.98, 2,302.92 and 922.83

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Solution

The fourth proportional to 1,668.98, 2,302.92 and 922.83 is: 1,273.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668.98 : 2,302.92 = 922.83 : x
  2. Step 2: Convert to fraction form
    1,668.98/2,302.92 = 922.83/x
  3. Step 3: Cross multiply
    1,668.98x = 2,302.92 × 922.83
  4. Step 4: Simplify right side
    1,668.98x = 2,125,203.66
  5. Step 5: Solve for x
    x = 2,125,203.66/1,668.98
  6. Step 6: Final answer
    x = 1,273.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.