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Finding the Fourth Proportional to 431,391.35, 595,293.90 and 237,790.59

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Solution

The fourth proportional to 431,391.35, 595,293.90 and 237,790.59 is: 328,136.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,391.35 : 595,293.90 = 237,790.59 : x
  2. Step 2: Convert to fraction form
    431,391.35/595,293.90 = 237,790.59/x
  3. Step 3: Cross multiply
    431,391.35x = 595,293.90 × 237,790.59
  4. Step 4: Simplify right side
    431,391.35x = 141,555,287,704.40
  5. Step 5: Solve for x
    x = 141,555,287,704.40/431,391.35
  6. Step 6: Final answer
    x = 328,136.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.