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Finding the Fourth Proportional to 481,042.16, 721,812.11 and 349,012.16

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Solution

The fourth proportional to 481,042.16, 721,812.11 and 349,012.16 is: 523,698.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,042.16 : 721,812.11 = 349,012.16 : x
  2. Step 2: Convert to fraction form
    481,042.16/721,812.11 = 349,012.16/x
  3. Step 3: Cross multiply
    481,042.16x = 721,812.11 × 349,012.16
  4. Step 4: Simplify right side
    481,042.16x = 251,921,203,625.26
  5. Step 5: Solve for x
    x = 251,921,203,625.26/481,042.16
  6. Step 6: Final answer
    x = 523,698.80

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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.