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Finding the Fourth Proportional to 453,021.90, 624,515.42 and 299,803.41

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Solution

The fourth proportional to 453,021.90, 624,515.42 and 299,803.41 is: 413,295.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,021.90 : 624,515.42 = 299,803.41 : x
  2. Step 2: Convert to fraction form
    453,021.90/624,515.42 = 299,803.41/x
  3. Step 3: Cross multiply
    453,021.90x = 624,515.42 × 299,803.41
  4. Step 4: Simplify right side
    453,021.90x = 187,231,851,576.70
  5. Step 5: Solve for x
    x = 187,231,851,576.70/453,021.90
  6. Step 6: Final answer
    x = 413,295.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.