Home / 666,940.25-1,000,569.54-217,661.97

Finding the Fourth Proportional to 666,940.25, 1,000,569.54 and 217,661.97

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Solution

The fourth proportional to 666,940.25, 1,000,569.54 and 217,661.97 is: 326,544.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,940.25 : 1,000,569.54 = 217,661.97 : x
  2. Step 2: Convert to fraction form
    666,940.25/1,000,569.54 = 217,661.97/x
  3. Step 3: Cross multiply
    666,940.25x = 1,000,569.54 × 217,661.97
  4. Step 4: Simplify right side
    666,940.25x = 217,785,937,198.39
  5. Step 5: Solve for x
    x = 217,785,937,198.39/666,940.25
  6. Step 6: Final answer
    x = 326,544.90

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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.