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Finding the Fourth Proportional to 424,841.22, 637,704.68 and 188,349.98

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Solution

The fourth proportional to 424,841.22, 637,704.68 and 188,349.98 is: 282,721.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,841.22 : 637,704.68 = 188,349.98 : x
  2. Step 2: Convert to fraction form
    424,841.22/637,704.68 = 188,349.98/x
  3. Step 3: Cross multiply
    424,841.22x = 637,704.68 × 188,349.98
  4. Step 4: Simplify right side
    424,841.22x = 120,111,659,593.63
  5. Step 5: Solve for x
    x = 120,111,659,593.63/424,841.22
  6. Step 6: Final answer
    x = 282,721.29

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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.