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Finding the Fourth Proportional to 1,584.96, 2,187.24 and 886.33

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Solution

The fourth proportional to 1,584.96, 2,187.24 and 886.33 is: 1,223.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,584.96 : 2,187.24 = 886.33 : x
  2. Step 2: Convert to fraction form
    1,584.96/2,187.24 = 886.33/x
  3. Step 3: Cross multiply
    1,584.96x = 2,187.24 × 886.33
  4. Step 4: Simplify right side
    1,584.96x = 1,938,612.00
  5. Step 5: Solve for x
    x = 1,938,612.00/1,584.96
  6. Step 6: Final answer
    x = 1,223.13

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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.