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Finding the Fourth Proportional to 457,550.84, 631,268.70 and 276,194

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Solution

The fourth proportional to 457,550.84, 631,268.70 and 276,194 is: 381,056.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,550.84 : 631,268.70 = 276,194 : x
  2. Step 2: Convert to fraction form
    457,550.84/631,268.70 = 276,194/x
  3. Step 3: Cross multiply
    457,550.84x = 631,268.70 × 276,194
  4. Step 4: Simplify right side
    457,550.84x = 174,352,627,327.80
  5. Step 5: Solve for x
    x = 174,352,627,327.80/457,550.84
  6. Step 6: Final answer
    x = 381,056.29

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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.