Home / 679,016.98-936,628.23-403,187.86

Finding the Fourth Proportional to 679,016.98, 936,628.23 and 403,187.86

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Solution

The fourth proportional to 679,016.98, 936,628.23 and 403,187.86 is: 556,152.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,016.98 : 936,628.23 = 403,187.86 : x
  2. Step 2: Convert to fraction form
    679,016.98/936,628.23 = 403,187.86/x
  3. Step 3: Cross multiply
    679,016.98x = 936,628.23 × 403,187.86
  4. Step 4: Simplify right side
    679,016.98x = 377,637,131,669.29
  5. Step 5: Solve for x
    x = 377,637,131,669.29/679,016.98
  6. Step 6: Final answer
    x = 556,152.71

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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.