Home / 627,081.91-865,384.44-355,206.26

Finding the Fourth Proportional to 627,081.91, 865,384.44 and 355,206.26

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Solution

The fourth proportional to 627,081.91, 865,384.44 and 355,206.26 is: 490,191.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,081.91 : 865,384.44 = 355,206.26 : x
  2. Step 2: Convert to fraction form
    627,081.91/865,384.44 = 355,206.26/x
  3. Step 3: Cross multiply
    627,081.91x = 865,384.44 × 355,206.26
  4. Step 4: Simplify right side
    627,081.91x = 307,389,965,179.66
  5. Step 5: Solve for x
    x = 307,389,965,179.66/627,081.91
  6. Step 6: Final answer
    x = 490,191.09

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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.