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Finding the Fourth Proportional to 589,170.80, 884,101.80 and 215,231.60

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Solution

The fourth proportional to 589,170.80, 884,101.80 and 215,231.60 is: 322,973.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,170.80 : 884,101.80 = 215,231.60 : x
  2. Step 2: Convert to fraction form
    589,170.80/884,101.80 = 215,231.60/x
  3. Step 3: Cross multiply
    589,170.80x = 884,101.80 × 215,231.60
  4. Step 4: Simplify right side
    589,170.80x = 190,286,644,976.88
  5. Step 5: Solve for x
    x = 190,286,644,976.88/589,170.80
  6. Step 6: Final answer
    x = 322,973.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.