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Finding the Fourth Proportional to 1,668.49, 2,302.53 and 922.48

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Solution

The fourth proportional to 1,668.49, 2,302.53 and 922.48 is: 1,273.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668.49 : 2,302.53 = 922.48 : x
  2. Step 2: Convert to fraction form
    1,668.49/2,302.53 = 922.48/x
  3. Step 3: Cross multiply
    1,668.49x = 2,302.53 × 922.48
  4. Step 4: Simplify right side
    1,668.49x = 2,124,037.87
  5. Step 5: Solve for x
    x = 2,124,037.87/1,668.49
  6. Step 6: Final answer
    x = 1,273.03

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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.