Home / 381,899.19-527,029.70-209,827.91

Finding the Fourth Proportional to 381,899.19, 527,029.70 and 209,827.91

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Solution

The fourth proportional to 381,899.19, 527,029.70 and 209,827.91 is: 289,567.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,899.19 : 527,029.70 = 209,827.91 : x
  2. Step 2: Convert to fraction form
    381,899.19/527,029.70 = 209,827.91/x
  3. Step 3: Cross multiply
    381,899.19x = 527,029.70 × 209,827.91
  4. Step 4: Simplify right side
    381,899.19x = 110,585,540,458.93
  5. Step 5: Solve for x
    x = 110,585,540,458.93/381,899.19
  6. Step 6: Final answer
    x = 289,567.36

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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.