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Finding the Fourth Proportional to 456,112.71, 629,380.62 and 252,135.81

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Solution

The fourth proportional to 456,112.71, 629,380.62 and 252,135.81 is: 347,917.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,112.71 : 629,380.62 = 252,135.81 : x
  2. Step 2: Convert to fraction form
    456,112.71/629,380.62 = 252,135.81/x
  3. Step 3: Cross multiply
    456,112.71x = 629,380.62 × 252,135.81
  4. Step 4: Simplify right side
    456,112.71x = 158,689,392,422.00
  5. Step 5: Solve for x
    x = 158,689,392,422.00/456,112.71
  6. Step 6: Final answer
    x = 347,917.06

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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.