Home / 627,514.19-865,936.35-355,585.33

Finding the Fourth Proportional to 627,514.19, 865,936.35 and 355,585.33

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Solution

The fourth proportional to 627,514.19, 865,936.35 and 355,585.33 is: 490,688.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,514.19 : 865,936.35 = 355,585.33 : x
  2. Step 2: Convert to fraction form
    627,514.19/865,936.35 = 355,585.33/x
  3. Step 3: Cross multiply
    627,514.19x = 865,936.35 × 355,585.33
  4. Step 4: Simplify right side
    627,514.19x = 307,914,260,608.91
  5. Step 5: Solve for x
    x = 307,914,260,608.91/627,514.19
  6. Step 6: Final answer
    x = 490,688.92

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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.