Home / 413,107.11-619,162.35-213,318.59

Finding the Fourth Proportional to 413,107.11, 619,162.35 and 213,318.59

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Solution

The fourth proportional to 413,107.11, 619,162.35 and 213,318.59 is: 319,720.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,107.11 : 619,162.35 = 213,318.59 : x
  2. Step 2: Convert to fraction form
    413,107.11/619,162.35 = 213,318.59/x
  3. Step 3: Cross multiply
    413,107.11x = 619,162.35 × 213,318.59
  4. Step 4: Simplify right side
    413,107.11x = 132,078,837,961.17
  5. Step 5: Solve for x
    x = 132,078,837,961.17/413,107.11
  6. Step 6: Final answer
    x = 319,720.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.