Home / 1,201,979.66-1,658,680.64-658,105.56

Finding the Fourth Proportional to 1,201,979.66, 1,658,680.64 and 658,105.56

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Solution

The fourth proportional to 1,201,979.66, 1,658,680.64 and 658,105.56 is: 908,157.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,979.66 : 1,658,680.64 = 658,105.56 : x
  2. Step 2: Convert to fraction form
    1,201,979.66/1,658,680.64 = 658,105.56/x
  3. Step 3: Cross multiply
    1,201,979.66x = 1,658,680.64 × 658,105.56
  4. Step 4: Simplify right side
    1,201,979.66x = 1,091,586,950,625.73
  5. Step 5: Solve for x
    x = 1,091,586,950,625.73/1,201,979.66
  6. Step 6: Final answer
    x = 908,157.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.