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Finding the Fourth Proportional to 577,676.74, 866,940.75 and 274,072.00

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Solution

The fourth proportional to 577,676.74, 866,940.75 and 274,072.00 is: 411,309.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,676.74 : 866,940.75 = 274,072.00 : x
  2. Step 2: Convert to fraction form
    577,676.74/866,940.75 = 274,072.00/x
  3. Step 3: Cross multiply
    577,676.74x = 866,940.75 × 274,072.00
  4. Step 4: Simplify right side
    577,676.74x = 237,604,179,528.94
  5. Step 5: Solve for x
    x = 237,604,179,528.94/577,676.74
  6. Step 6: Final answer
    x = 411,309.93

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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.