Home / 678,767.36-936,685.44-376,951.04

Finding the Fourth Proportional to 678,767.36, 936,685.44 and 376,951.04

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Solution

The fourth proportional to 678,767.36, 936,685.44 and 376,951.04 is: 520,184.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,767.36 : 936,685.44 = 376,951.04 : x
  2. Step 2: Convert to fraction form
    678,767.36/936,685.44 = 376,951.04/x
  3. Step 3: Cross multiply
    678,767.36x = 936,685.44 × 376,951.04
  4. Step 4: Simplify right side
    678,767.36x = 353,084,550,760.86
  5. Step 5: Solve for x
    x = 353,084,550,760.86/678,767.36
  6. Step 6: Final answer
    x = 520,184.93

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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.