Home / 377,623.72-521,120.49-207,857.85

Finding the Fourth Proportional to 377,623.72, 521,120.49 and 207,857.85

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Solution

The fourth proportional to 377,623.72, 521,120.49 and 207,857.85 is: 286,843.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,623.72 : 521,120.49 = 207,857.85 : x
  2. Step 2: Convert to fraction form
    377,623.72/521,120.49 = 207,857.85/x
  3. Step 3: Cross multiply
    377,623.72x = 521,120.49 × 207,857.85
  4. Step 4: Simplify right side
    377,623.72x = 108,318,981,908.68
  5. Step 5: Solve for x
    x = 108,318,981,908.68/377,623.72
  6. Step 6: Final answer
    x = 286,843.69

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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.