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Finding the Fourth Proportional to 1,584.48, 2,186.52 and 885.96

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Solution

The fourth proportional to 1,584.48, 2,186.52 and 885.96 is: 1,222.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,584.48 : 2,186.52 = 885.96 : x
  2. Step 2: Convert to fraction form
    1,584.48/2,186.52 = 885.96/x
  3. Step 3: Cross multiply
    1,584.48x = 2,186.52 × 885.96
  4. Step 4: Simplify right side
    1,584.48x = 1,937,169.26
  5. Step 5: Solve for x
    x = 1,937,169.26/1,584.48
  6. Step 6: Final answer
    x = 1,222.59

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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.