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Finding the Fourth Proportional to 481,713.66, 664,390.62 and 328,875.03

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Solution

The fourth proportional to 481,713.66, 664,390.62 and 328,875.03 is: 453,592.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,713.66 : 664,390.62 = 328,875.03 : x
  2. Step 2: Convert to fraction form
    481,713.66/664,390.62 = 328,875.03/x
  3. Step 3: Cross multiply
    481,713.66x = 664,390.62 × 328,875.03
  4. Step 4: Simplify right side
    481,713.66x = 218,501,485,084.22
  5. Step 5: Solve for x
    x = 218,501,485,084.22/481,713.66
  6. Step 6: Final answer
    x = 453,592.05

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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.