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Finding the Fourth Proportional to 1,668.65, 2,301.64 and 1,170.41

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Solution

The fourth proportional to 1,668.65, 2,301.64 and 1,170.41 is: 1,614.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668.65 : 2,301.64 = 1,170.41 : x
  2. Step 2: Convert to fraction form
    1,668.65/2,301.64 = 1,170.41/x
  3. Step 3: Cross multiply
    1,668.65x = 2,301.64 × 1,170.41
  4. Step 4: Simplify right side
    1,668.65x = 2,693,848.04
  5. Step 5: Solve for x
    x = 2,693,848.04/1,668.65
  6. Step 6: Final answer
    x = 1,614.39

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1.5x scale

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.