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Finding the Fourth Proportional to 332,436, 458,794.88 and 198,300

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Solution

The fourth proportional to 332,436, 458,794.88 and 198,300 is: 273,673.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,436 : 458,794.88 = 198,300 : x
  2. Step 2: Convert to fraction form
    332,436/458,794.88 = 198,300/x
  3. Step 3: Cross multiply
    332,436x = 458,794.88 × 198,300
  4. Step 4: Simplify right side
    332,436x = 90,979,024,704
  5. Step 5: Solve for x
    x = 90,979,024,704/332,436
  6. Step 6: Final answer
    x = 273,673.80

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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.