Home / 635,943.29-877,384.51-394,137.63

Finding the Fourth Proportional to 635,943.29, 877,384.51 and 394,137.63

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Solution

The fourth proportional to 635,943.29, 877,384.51 and 394,137.63 is: 543,775.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,943.29 : 877,384.51 = 394,137.63 : x
  2. Step 2: Convert to fraction form
    635,943.29/877,384.51 = 394,137.63/x
  3. Step 3: Cross multiply
    635,943.29x = 877,384.51 × 394,137.63
  4. Step 4: Simplify right side
    635,943.29x = 345,810,250,384.77
  5. Step 5: Solve for x
    x = 345,810,250,384.77/635,943.29
  6. Step 6: Final answer
    x = 543,775.30

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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.