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Finding the Fourth Proportional to 377,638.97, 521,154.97 and 205,571.10

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Solution

The fourth proportional to 377,638.97, 521,154.97 and 205,571.10 is: 283,695.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,638.97 : 521,154.97 = 205,571.10 : x
  2. Step 2: Convert to fraction form
    377,638.97/521,154.97 = 205,571.10/x
  3. Step 3: Cross multiply
    377,638.97x = 521,154.97 × 205,571.10
  4. Step 4: Simplify right side
    377,638.97x = 107,134,400,453.37
  5. Step 5: Solve for x
    x = 107,134,400,453.37/377,638.97
  6. Step 6: Final answer
    x = 283,695.30

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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.