Home / 619,928.85-855,530.23-344,287.96

Finding the Fourth Proportional to 619,928.85, 855,530.23 and 344,287.96

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Solution

The fourth proportional to 619,928.85, 855,530.23 and 344,287.96 is: 475,133.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,928.85 : 855,530.23 = 344,287.96 : x
  2. Step 2: Convert to fraction form
    619,928.85/855,530.23 = 344,287.96/x
  3. Step 3: Cross multiply
    619,928.85x = 855,530.23 × 344,287.96
  4. Step 4: Simplify right side
    619,928.85x = 294,548,757,605.03
  5. Step 5: Solve for x
    x = 294,548,757,605.03/619,928.85
  6. Step 6: Final answer
    x = 475,133.17

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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.