Home / 627,028.68-865,305.92-340,554.36

Finding the Fourth Proportional to 627,028.68, 865,305.92 and 340,554.36

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Solution

The fourth proportional to 627,028.68, 865,305.92 and 340,554.36 is: 469,968.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,028.68 : 865,305.92 = 340,554.36 : x
  2. Step 2: Convert to fraction form
    627,028.68/865,305.92 = 340,554.36/x
  3. Step 3: Cross multiply
    627,028.68x = 865,305.92 × 340,554.36
  4. Step 4: Simplify right side
    627,028.68x = 294,683,703,789.81
  5. Step 5: Solve for x
    x = 294,683,703,789.81/627,028.68
  6. Step 6: Final answer
    x = 469,968.46

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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.