Home / 515,488.98-772,844.64-338,040.66

Finding the Fourth Proportional to 515,488.98, 772,844.64 and 338,040.66

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Solution

The fourth proportional to 515,488.98, 772,844.64 and 338,040.66 is: 506,806.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,488.98 : 772,844.64 = 338,040.66 : x
  2. Step 2: Convert to fraction form
    515,488.98/772,844.64 = 338,040.66/x
  3. Step 3: Cross multiply
    515,488.98x = 772,844.64 × 338,040.66
  4. Step 4: Simplify right side
    515,488.98x = 261,252,912,183.06
  5. Step 5: Solve for x
    x = 261,252,912,183.06/515,488.98
  6. Step 6: Final answer
    x = 506,806.01

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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.