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Finding the Fourth Proportional to 449,040, 619,676.02 and 247,836

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Solution

The fourth proportional to 449,040, 619,676.02 and 247,836 is: 342,014.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,040 : 619,676.02 = 247,836 : x
  2. Step 2: Convert to fraction form
    449,040/619,676.02 = 247,836/x
  3. Step 3: Cross multiply
    449,040x = 619,676.02 × 247,836
  4. Step 4: Simplify right side
    449,040x = 153,578,026,092.72
  5. Step 5: Solve for x
    x = 153,578,026,092.72/449,040
  6. Step 6: Final answer
    x = 342,014.13

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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.