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Finding the Fourth Proportional to 469,656.91, 648,127.79 and 254,796.98

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Solution

The fourth proportional to 469,656.91, 648,127.79 and 254,796.98 is: 351,620.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,656.91 : 648,127.79 = 254,796.98 : x
  2. Step 2: Convert to fraction form
    469,656.91/648,127.79 = 254,796.98/x
  3. Step 3: Cross multiply
    469,656.91x = 648,127.79 × 254,796.98
  4. Step 4: Simplify right side
    469,656.91x = 165,141,003,243.03
  5. Step 5: Solve for x
    x = 165,141,003,243.03/469,656.91
  6. Step 6: Final answer
    x = 351,620.51

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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.