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Finding the Fourth Proportional to 359,628.84, 496,285.35 and 198,483.88

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Solution

The fourth proportional to 359,628.84, 496,285.35 and 198,483.88 is: 273,906.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,628.84 : 496,285.35 = 198,483.88 : x
  2. Step 2: Convert to fraction form
    359,628.84/496,285.35 = 198,483.88/x
  3. Step 3: Cross multiply
    359,628.84x = 496,285.35 × 198,483.88
  4. Step 4: Simplify right side
    359,628.84x = 98,504,640,862.74
  5. Step 5: Solve for x
    x = 98,504,640,862.74/359,628.84
  6. Step 6: Final answer
    x = 273,906.40

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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.