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Finding the Fourth Proportional to 322,881.39, 483,655.05 and 189,359.57

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Solution

The fourth proportional to 322,881.39, 483,655.05 and 189,359.57 is: 283,648.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,881.39 : 483,655.05 = 189,359.57 : x
  2. Step 2: Convert to fraction form
    322,881.39/483,655.05 = 189,359.57/x
  3. Step 3: Cross multiply
    322,881.39x = 483,655.05 × 189,359.57
  4. Step 4: Simplify right side
    322,881.39x = 91,584,713,505.47
  5. Step 5: Solve for x
    x = 91,584,713,505.47/322,881.39
  6. Step 6: Final answer
    x = 283,648.16

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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.