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Finding the Fourth Proportional to 544,664.40, 817,662.20 and 308,171.60

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Solution

The fourth proportional to 544,664.40, 817,662.20 and 308,171.60 is: 462,634.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,664.40 : 817,662.20 = 308,171.60 : x
  2. Step 2: Convert to fraction form
    544,664.40/817,662.20 = 308,171.60/x
  3. Step 3: Cross multiply
    544,664.40x = 817,662.20 × 308,171.60
  4. Step 4: Simplify right side
    544,664.40x = 251,980,268,433.52
  5. Step 5: Solve for x
    x = 251,980,268,433.52/544,664.40
  6. Step 6: Final answer
    x = 462,634.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.