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Finding the Fourth Proportional to 635,732.91, 877,311.77 and 349,271.45

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Solution

The fourth proportional to 635,732.91, 877,311.77 and 349,271.45 is: 481,994.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,732.91 : 877,311.77 = 349,271.45 : x
  2. Step 2: Convert to fraction form
    635,732.91/877,311.77 = 349,271.45/x
  3. Step 3: Cross multiply
    635,732.91x = 877,311.77 × 349,271.45
  4. Step 4: Simplify right side
    635,732.91x = 306,419,947,877.05
  5. Step 5: Solve for x
    x = 306,419,947,877.05/635,732.91
  6. Step 6: Final answer
    x = 481,994.79

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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.