Home / 638,613.20-957,923.72-189,338.33

Finding the Fourth Proportional to 638,613.20, 957,923.72 and 189,338.33

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Solution

The fourth proportional to 638,613.20, 957,923.72 and 189,338.33 is: 284,008.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,613.20 : 957,923.72 = 189,338.33 : x
  2. Step 2: Convert to fraction form
    638,613.20/957,923.72 = 189,338.33/x
  3. Step 3: Cross multiply
    638,613.20x = 957,923.72 × 189,338.33
  4. Step 4: Simplify right side
    638,613.20x = 181,371,679,570.32
  5. Step 5: Solve for x
    x = 181,371,679,570.32/638,613.20
  6. Step 6: Final answer
    x = 284,008.66

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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.