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Finding the Fourth Proportional to 436,109.21, 654,568.62 and 223,029.39

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Solution

The fourth proportional to 436,109.21, 654,568.62 and 223,029.39 is: 334,751.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,109.21 : 654,568.62 = 223,029.39 : x
  2. Step 2: Convert to fraction form
    436,109.21/654,568.62 = 223,029.39/x
  3. Step 3: Cross multiply
    436,109.21x = 654,568.62 × 223,029.39
  4. Step 4: Simplify right side
    436,109.21x = 145,988,039,474.17
  5. Step 5: Solve for x
    x = 145,988,039,474.17/436,109.21
  6. Step 6: Final answer
    x = 334,751.11

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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.