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Finding the Fourth Proportional to 482,664.45, 666,243.48 and 299,043.93

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Solution

The fourth proportional to 482,664.45, 666,243.48 and 299,043.93 is: 412,783.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,664.45 : 666,243.48 = 299,043.93 : x
  2. Step 2: Convert to fraction form
    482,664.45/666,243.48 = 299,043.93/x
  3. Step 3: Cross multiply
    482,664.45x = 666,243.48 × 299,043.93
  4. Step 4: Simplify right side
    482,664.45x = 199,236,068,596.08
  5. Step 5: Solve for x
    x = 199,236,068,596.08/482,664.45
  6. Step 6: Final answer
    x = 412,783.81

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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.