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Finding the Fourth Proportional to 481,620.54, 664,641.18 and 290,597.16

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Solution

The fourth proportional to 481,620.54, 664,641.18 and 290,597.16 is: 401,027.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,620.54 : 664,641.18 = 290,597.16 : x
  2. Step 2: Convert to fraction form
    481,620.54/664,641.18 = 290,597.16/x
  3. Step 3: Cross multiply
    481,620.54x = 664,641.18 × 290,597.16
  4. Step 4: Simplify right side
    481,620.54x = 193,142,839,327.05
  5. Step 5: Solve for x
    x = 193,142,839,327.05/481,620.54
  6. Step 6: Final answer
    x = 401,027.00

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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.