Home / 678,739.29-936,634.55-376,952.73

Finding the Fourth Proportional to 678,739.29, 936,634.55 and 376,952.73

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Solution

The fourth proportional to 678,739.29, 936,634.55 and 376,952.73 is: 520,180.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,739.29 : 936,634.55 = 376,952.73 : x
  2. Step 2: Convert to fraction form
    678,739.29/936,634.55 = 376,952.73/x
  3. Step 3: Cross multiply
    678,739.29x = 936,634.55 × 376,952.73
  4. Step 4: Simplify right side
    678,739.29x = 353,066,950,634.82
  5. Step 5: Solve for x
    x = 353,066,950,634.82/678,739.29
  6. Step 6: Final answer
    x = 520,180.51

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1.5x scale

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.