Home / 519,905.13-779,857.69-187,481.13

Finding the Fourth Proportional to 519,905.13, 779,857.69 and 187,481.13

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Solution

The fourth proportional to 519,905.13, 779,857.69 and 187,481.13 is: 281,221.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,905.13 : 779,857.69 = 187,481.13 : x
  2. Step 2: Convert to fraction form
    519,905.13/779,857.69 = 187,481.13/x
  3. Step 3: Cross multiply
    519,905.13x = 779,857.69 × 187,481.13
  4. Step 4: Simplify right side
    519,905.13x = 146,208,600,960.39
  5. Step 5: Solve for x
    x = 146,208,600,960.39/519,905.13
  6. Step 6: Final answer
    x = 281,221.69

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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.