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Finding the Fourth Proportional to 389,466.70, 584,200.05 and 365,847.10

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Solution

The fourth proportional to 389,466.70, 584,200.05 and 365,847.10 is: 548,770.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,466.70 : 584,200.05 = 365,847.10 : x
  2. Step 2: Convert to fraction form
    389,466.70/584,200.05 = 365,847.10/x
  3. Step 3: Cross multiply
    389,466.70x = 584,200.05 × 365,847.10
  4. Step 4: Simplify right side
    389,466.70x = 213,727,894,112.36
  5. Step 5: Solve for x
    x = 213,727,894,112.36/389,466.70
  6. Step 6: Final answer
    x = 548,770.65

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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.