Home / 543,902.85-815,623.56-259,264.11

Finding the Fourth Proportional to 543,902.85, 815,623.56 and 259,264.11

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Solution

The fourth proportional to 543,902.85, 815,623.56 and 259,264.11 is: 388,786.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,902.85 : 815,623.56 = 259,264.11 : x
  2. Step 2: Convert to fraction form
    543,902.85/815,623.56 = 259,264.11/x
  3. Step 3: Cross multiply
    543,902.85x = 815,623.56 × 259,264.11
  4. Step 4: Simplify right side
    543,902.85x = 211,461,916,378.43
  5. Step 5: Solve for x
    x = 211,461,916,378.43/543,902.85
  6. Step 6: Final answer
    x = 388,786.19

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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.