Home / 678,791.24-936,734.12-376,985.24

Finding the Fourth Proportional to 678,791.24, 936,734.12 and 376,985.24

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Solution

The fourth proportional to 678,791.24, 936,734.12 and 376,985.24 is: 520,240.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,791.24 : 936,734.12 = 376,985.24 : x
  2. Step 2: Convert to fraction form
    678,791.24/936,734.12 = 376,985.24/x
  3. Step 3: Cross multiply
    678,791.24x = 936,734.12 × 376,985.24
  4. Step 4: Simplify right side
    678,791.24x = 353,134,937,044.39
  5. Step 5: Solve for x
    x = 353,134,937,044.39/678,791.24
  6. Step 6: Final answer
    x = 520,240.86

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Double scale
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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.