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Finding the Fourth Proportional to 1,506.51, 2,079.27 and 843.66

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Solution

The fourth proportional to 1,506.51, 2,079.27 and 843.66 is: 1,164.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,506.51 : 2,079.27 = 843.66 : x
  2. Step 2: Convert to fraction form
    1,506.51/2,079.27 = 843.66/x
  3. Step 3: Cross multiply
    1,506.51x = 2,079.27 × 843.66
  4. Step 4: Simplify right side
    1,506.51x = 1,754,196.93
  5. Step 5: Solve for x
    x = 1,754,196.93/1,506.51
  6. Step 6: Final answer
    x = 1,164.41

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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.