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Finding the Fourth Proportional to 469,327.28, 647,665.62 and 254,466.68

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Solution

The fourth proportional to 469,327.28, 647,665.62 and 254,466.68 is: 351,160.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,327.28 : 647,665.62 = 254,466.68 : x
  2. Step 2: Convert to fraction form
    469,327.28/647,665.62 = 254,466.68/x
  3. Step 3: Cross multiply
    469,327.28x = 647,665.62 × 254,466.68
  4. Step 4: Simplify right side
    469,327.28x = 164,809,320,071.54
  5. Step 5: Solve for x
    x = 164,809,320,071.54/469,327.28
  6. Step 6: Final answer
    x = 351,160.75

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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.