Home / 638,048.80-955,892.40-371,936.80

Finding the Fourth Proportional to 638,048.80, 955,892.40 and 371,936.80

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Solution

The fourth proportional to 638,048.80, 955,892.40 and 371,936.80 is: 557,216.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,048.80 : 955,892.40 = 371,936.80 : x
  2. Step 2: Convert to fraction form
    638,048.80/955,892.40 = 371,936.80/x
  3. Step 3: Cross multiply
    638,048.80x = 955,892.40 × 371,936.80
  4. Step 4: Simplify right side
    638,048.80x = 355,531,560,400.32
  5. Step 5: Solve for x
    x = 355,531,560,400.32/638,048.80
  6. Step 6: Final answer
    x = 557,216.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.