Home / 627,515.19-865,937.73-355,586.33

Finding the Fourth Proportional to 627,515.19, 865,937.73 and 355,586.33

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Solution

The fourth proportional to 627,515.19, 865,937.73 and 355,586.33 is: 490,690.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,515.19 : 865,937.73 = 355,586.33 : x
  2. Step 2: Convert to fraction form
    627,515.19/865,937.73 = 355,586.33/x
  3. Step 3: Cross multiply
    627,515.19x = 865,937.73 × 355,586.33
  4. Step 4: Simplify right side
    627,515.19x = 307,915,619,419.23
  5. Step 5: Solve for x
    x = 307,915,619,419.23/627,515.19
  6. Step 6: Final answer
    x = 490,690.30

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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.