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Finding the Fourth Proportional to 589,912.80, 885,087.90 and 235,181.40

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Solution

The fourth proportional to 589,912.80, 885,087.90 and 235,181.40 is: 352,859.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,912.80 : 885,087.90 = 235,181.40 : x
  2. Step 2: Convert to fraction form
    589,912.80/885,087.90 = 235,181.40/x
  3. Step 3: Cross multiply
    589,912.80x = 885,087.90 × 235,181.40
  4. Step 4: Simplify right side
    589,912.80x = 208,156,211,445.06
  5. Step 5: Solve for x
    x = 208,156,211,445.06/589,912.80
  6. Step 6: Final answer
    x = 352,859.29

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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.