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Finding the Fourth Proportional to 359,638.60, 496,300.80 and 198,493.96

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Solution

The fourth proportional to 359,638.60, 496,300.80 and 198,493.96 is: 273,921.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,638.60 : 496,300.80 = 198,493.96 : x
  2. Step 2: Convert to fraction form
    359,638.60/496,300.80 = 198,493.96/x
  3. Step 3: Cross multiply
    359,638.60x = 496,300.80 × 198,493.96
  4. Step 4: Simplify right side
    359,638.60x = 98,512,711,143.17
  5. Step 5: Solve for x
    x = 98,512,711,143.17/359,638.60
  6. Step 6: Final answer
    x = 273,921.41

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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.