Home / 436,139.31-653,941.05-169,589.12

Finding the Fourth Proportional to 436,139.31, 653,941.05 and 169,589.12

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Solution

The fourth proportional to 436,139.31, 653,941.05 and 169,589.12 is: 254,279.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,139.31 : 653,941.05 = 169,589.12 : x
  2. Step 2: Convert to fraction form
    436,139.31/653,941.05 = 169,589.12/x
  3. Step 3: Cross multiply
    436,139.31x = 653,941.05 × 169,589.12
  4. Step 4: Simplify right side
    436,139.31x = 110,901,285,747.99
  5. Step 5: Solve for x
    x = 110,901,285,747.99/436,139.31
  6. Step 6: Final answer
    x = 254,279.50

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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.