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Finding the Fourth Proportional to 462,767.90, 694,015.68 and 209,902.10

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Solution

The fourth proportional to 462,767.90, 694,015.68 and 209,902.10 is: 314,791.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,767.90 : 694,015.68 = 209,902.10 : x
  2. Step 2: Convert to fraction form
    462,767.90/694,015.68 = 209,902.10/x
  3. Step 3: Cross multiply
    462,767.90x = 694,015.68 × 209,902.10
  4. Step 4: Simplify right side
    462,767.90x = 145,675,348,664.93
  5. Step 5: Solve for x
    x = 145,675,348,664.93/462,767.90
  6. Step 6: Final answer
    x = 314,791.39

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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.