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Finding the Fourth Proportional to 469,400.74, 647,777.07 and 254,540.81

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Solution

The fourth proportional to 469,400.74, 647,777.07 and 254,540.81 is: 351,268.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,400.74 : 647,777.07 = 254,540.81 : x
  2. Step 2: Convert to fraction form
    469,400.74/647,777.07 = 254,540.81/x
  3. Step 3: Cross multiply
    469,400.74x = 647,777.07 × 254,540.81
  4. Step 4: Simplify right side
    469,400.74x = 164,885,701,716.67
  5. Step 5: Solve for x
    x = 164,885,701,716.67/469,400.74
  6. Step 6: Final answer
    x = 351,268.52

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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.