Home / 578,520.66-868,340.72-279,211.97

Finding the Fourth Proportional to 578,520.66, 868,340.72 and 279,211.97

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Solution

The fourth proportional to 578,520.66, 868,340.72 and 279,211.97 is: 419,088.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,520.66 : 868,340.72 = 279,211.97 : x
  2. Step 2: Convert to fraction form
    578,520.66/868,340.72 = 279,211.97/x
  3. Step 3: Cross multiply
    578,520.66x = 868,340.72 × 279,211.97
  4. Step 4: Simplify right side
    578,520.66x = 242,451,117,324.66
  5. Step 5: Solve for x
    x = 242,451,117,324.66/578,520.66
  6. Step 6: Final answer
    x = 419,088.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.