Home / 679,134.98-937,151.37-392,673.56

Finding the Fourth Proportional to 679,134.98, 937,151.37 and 392,673.56

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Solution

The fourth proportional to 679,134.98, 937,151.37 and 392,673.56 is: 541,857.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,134.98 : 937,151.37 = 392,673.56 : x
  2. Step 2: Convert to fraction form
    679,134.98/937,151.37 = 392,673.56/x
  3. Step 3: Cross multiply
    679,134.98x = 937,151.37 × 392,673.56
  4. Step 4: Simplify right side
    679,134.98x = 367,994,560,031.02
  5. Step 5: Solve for x
    x = 367,994,560,031.02/679,134.98
  6. Step 6: Final answer
    x = 541,857.76

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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.