Home / 627,513.44-865,935.32-355,584.58

Finding the Fourth Proportional to 627,513.44, 865,935.32 and 355,584.58

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Solution

The fourth proportional to 627,513.44, 865,935.32 and 355,584.58 is: 490,687.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,513.44 : 865,935.32 = 355,584.58 : x
  2. Step 2: Convert to fraction form
    627,513.44/865,935.32 = 355,584.58/x
  3. Step 3: Cross multiply
    627,513.44x = 865,935.32 × 355,584.58
  4. Step 4: Simplify right side
    627,513.44x = 307,913,243,126.60
  5. Step 5: Solve for x
    x = 307,913,243,126.60/627,513.44
  6. Step 6: Final answer
    x = 490,687.89

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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.