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Finding the Fourth Proportional to 394,770.31, 544,783.26 and 213,482.23

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Solution

The fourth proportional to 394,770.31, 544,783.26 and 213,482.23 is: 294,605.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,770.31 : 544,783.26 = 213,482.23 : x
  2. Step 2: Convert to fraction form
    394,770.31/544,783.26 = 213,482.23/x
  3. Step 3: Cross multiply
    394,770.31x = 544,783.26 × 213,482.23
  4. Step 4: Simplify right side
    394,770.31x = 116,301,545,211.47
  5. Step 5: Solve for x
    x = 116,301,545,211.47/394,770.31
  6. Step 6: Final answer
    x = 294,605.60

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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.