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Finding the Fourth Proportional to 543,354.98, 815,006.16 and 206,369.33

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Solution

The fourth proportional to 543,354.98, 815,006.16 and 206,369.33 is: 309,544.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,354.98 : 815,006.16 = 206,369.33 : x
  2. Step 2: Convert to fraction form
    543,354.98/815,006.16 = 206,369.33/x
  3. Step 3: Cross multiply
    543,354.98x = 815,006.16 × 206,369.33
  4. Step 4: Simplify right side
    543,354.98x = 168,192,271,110.04
  5. Step 5: Solve for x
    x = 168,192,271,110.04/543,354.98
  6. Step 6: Final answer
    x = 309,544.00

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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.