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Finding the Fourth Proportional to 635,753.72, 877,336.46 and 349,267.64

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Solution

The fourth proportional to 635,753.72, 877,336.46 and 349,267.64 is: 481,987.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,753.72 : 877,336.46 = 349,267.64 : x
  2. Step 2: Convert to fraction form
    635,753.72/877,336.46 = 349,267.64/x
  3. Step 3: Cross multiply
    635,753.72x = 877,336.46 × 349,267.64
  4. Step 4: Simplify right side
    635,753.72x = 306,425,234,870.15
  5. Step 5: Solve for x
    x = 306,425,234,870.15/635,753.72
  6. Step 6: Final answer
    x = 481,987.33

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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.