Home / 656,198.10-905,553.37-354,392.10

Finding the Fourth Proportional to 656,198.10, 905,553.37 and 354,392.10

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Solution

The fourth proportional to 656,198.10, 905,553.37 and 354,392.10 is: 489,061.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,198.10 : 905,553.37 = 354,392.10 : x
  2. Step 2: Convert to fraction form
    656,198.10/905,553.37 = 354,392.10/x
  3. Step 3: Cross multiply
    656,198.10x = 905,553.37 × 354,392.10
  4. Step 4: Simplify right side
    656,198.10x = 320,920,958,684.42
  5. Step 5: Solve for x
    x = 320,920,958,684.42/656,198.10
  6. Step 6: Final answer
    x = 489,061.09

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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.