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Finding the Fourth Proportional to 548,633.25, 822,202.65 and 308,861.51

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Solution

The fourth proportional to 548,633.25, 822,202.65 and 308,861.51 is: 462,871.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,633.25 : 822,202.65 = 308,861.51 : x
  2. Step 2: Convert to fraction form
    548,633.25/822,202.65 = 308,861.51/x
  3. Step 3: Cross multiply
    548,633.25x = 822,202.65 × 308,861.51
  4. Step 4: Simplify right side
    548,633.25x = 253,946,747,893.99
  5. Step 5: Solve for x
    x = 253,946,747,893.99/548,633.25
  6. Step 6: Final answer
    x = 462,871.60

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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.