Home / 678,318.26-936,032.37-376,488.50

Finding the Fourth Proportional to 678,318.26, 936,032.37 and 376,488.50

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Solution

The fourth proportional to 678,318.26, 936,032.37 and 376,488.50 is: 519,528.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,318.26 : 936,032.37 = 376,488.50 : x
  2. Step 2: Convert to fraction form
    678,318.26/936,032.37 = 376,488.50/x
  3. Step 3: Cross multiply
    678,318.26x = 936,032.37 × 376,488.50
  4. Step 4: Simplify right side
    678,318.26x = 352,405,422,932.75
  5. Step 5: Solve for x
    x = 352,405,422,932.75/678,318.26
  6. Step 6: Final answer
    x = 519,528.14

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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.