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Finding the Fourth Proportional to 436,085.40, 653,642.10 and 169,757.40

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Solution

The fourth proportional to 436,085.40, 653,642.10 and 169,757.40 is: 254,446.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,085.40 : 653,642.10 = 169,757.40 : x
  2. Step 2: Convert to fraction form
    436,085.40/653,642.10 = 169,757.40/x
  3. Step 3: Cross multiply
    436,085.40x = 653,642.10 × 169,757.40
  4. Step 4: Simplify right side
    436,085.40x = 110,960,583,426.54
  5. Step 5: Solve for x
    x = 110,960,583,426.54/436,085.40
  6. Step 6: Final answer
    x = 254,446.91

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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.