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Finding the Fourth Proportional to 404,759.69, 558,049.16 and 331,894.12

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Solution

The fourth proportional to 404,759.69, 558,049.16 and 331,894.12 is: 457,588.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,759.69 : 558,049.16 = 331,894.12 : x
  2. Step 2: Convert to fraction form
    404,759.69/558,049.16 = 331,894.12/x
  3. Step 3: Cross multiply
    404,759.69x = 558,049.16 × 331,894.12
  4. Step 4: Simplify right side
    404,759.69x = 185,213,232,084.69
  5. Step 5: Solve for x
    x = 185,213,232,084.69/404,759.69
  6. Step 6: Final answer
    x = 457,588.14

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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.