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Finding the Fourth Proportional to 367,605.19, 551,015.74 and 209,493.19

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Solution

The fourth proportional to 367,605.19, 551,015.74 and 209,493.19 is: 314,016.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,605.19 : 551,015.74 = 209,493.19 : x
  2. Step 2: Convert to fraction form
    367,605.19/551,015.74 = 209,493.19/x
  3. Step 3: Cross multiply
    367,605.19x = 551,015.74 × 209,493.19
  4. Step 4: Simplify right side
    367,605.19x = 115,434,045,112.81
  5. Step 5: Solve for x
    x = 115,434,045,112.81/367,605.19
  6. Step 6: Final answer
    x = 314,016.36

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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.