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Finding the Fourth Proportional to 624,241.19, 936,403.31 and 219,384.43

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Solution

The fourth proportional to 624,241.19, 936,403.31 and 219,384.43 is: 329,091.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,241.19 : 936,403.31 = 219,384.43 : x
  2. Step 2: Convert to fraction form
    624,241.19/936,403.31 = 219,384.43/x
  3. Step 3: Cross multiply
    624,241.19x = 936,403.31 × 219,384.43
  4. Step 4: Simplify right side
    624,241.19x = 205,432,306,488.05
  5. Step 5: Solve for x
    x = 205,432,306,488.05/624,241.19
  6. Step 6: Final answer
    x = 329,091.24

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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.