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Finding the Fourth Proportional to 376,827.51, 520,021.84 and 207,072.57

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Solution

The fourth proportional to 376,827.51, 520,021.84 and 207,072.57 is: 285,760.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,827.51 : 520,021.84 = 207,072.57 : x
  2. Step 2: Convert to fraction form
    376,827.51/520,021.84 = 207,072.57/x
  3. Step 3: Cross multiply
    376,827.51x = 520,021.84 × 207,072.57
  4. Step 4: Simplify right side
    376,827.51x = 107,682,258,864.93
  5. Step 5: Solve for x
    x = 107,682,258,864.93/376,827.51
  6. Step 6: Final answer
    x = 285,760.08

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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.