Home / 465,830.54-642,868.96-261,945.65

Finding the Fourth Proportional to 465,830.54, 642,868.96 and 261,945.65

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Solution

The fourth proportional to 465,830.54, 642,868.96 and 261,945.65 is: 361,497.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,830.54 : 642,868.96 = 261,945.65 : x
  2. Step 2: Convert to fraction form
    465,830.54/642,868.96 = 261,945.65/x
  3. Step 3: Cross multiply
    465,830.54x = 642,868.96 × 261,945.65
  4. Step 4: Simplify right side
    465,830.54x = 168,396,723,722.82
  5. Step 5: Solve for x
    x = 168,396,723,722.82/465,830.54
  6. Step 6: Final answer
    x = 361,497.82

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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.