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Finding the Fourth Proportional to 456,131.79, 629,443.31 and 252,169.74

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Solution

The fourth proportional to 456,131.79, 629,443.31 and 252,169.74 is: 347,983.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,131.79 : 629,443.31 = 252,169.74 : x
  2. Step 2: Convert to fraction form
    456,131.79/629,443.31 = 252,169.74/x
  3. Step 3: Cross multiply
    456,131.79x = 629,443.31 × 252,169.74
  4. Step 4: Simplify right side
    456,131.79x = 158,726,554,566.59
  5. Step 5: Solve for x
    x = 158,726,554,566.59/456,131.79
  6. Step 6: Final answer
    x = 347,983.98

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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.