Home / 626,936.36-865,172.34-340,456.37

Finding the Fourth Proportional to 626,936.36, 865,172.34 and 340,456.37

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Solution

The fourth proportional to 626,936.36, 865,172.34 and 340,456.37 is: 469,829.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,936.36 : 865,172.34 = 340,456.37 : x
  2. Step 2: Convert to fraction form
    626,936.36/865,172.34 = 340,456.37/x
  3. Step 3: Cross multiply
    626,936.36x = 865,172.34 × 340,456.37
  4. Step 4: Simplify right side
    626,936.36x = 294,553,429,974.94
  5. Step 5: Solve for x
    x = 294,553,429,974.94/626,936.36
  6. Step 6: Final answer
    x = 469,829.88

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1.5x scale

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.