Home / 377,863.30-521,427.70-208,097.43

Finding the Fourth Proportional to 377,863.30, 521,427.70 and 208,097.43

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Solution

The fourth proportional to 377,863.30, 521,427.70 and 208,097.43 is: 287,161.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,863.30 : 521,427.70 = 208,097.43 : x
  2. Step 2: Convert to fraction form
    377,863.30/521,427.70 = 208,097.43/x
  3. Step 3: Cross multiply
    377,863.30x = 521,427.70 × 208,097.43
  4. Step 4: Simplify right side
    377,863.30x = 108,507,764,300.81
  5. Step 5: Solve for x
    x = 108,507,764,300.81/377,863.30
  6. Step 6: Final answer
    x = 287,161.43

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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.