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Finding the Fourth Proportional to 359,718.45, 496,414.95 and 198,570.03

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Solution

The fourth proportional to 359,718.45, 496,414.95 and 198,570.03 is: 274,028.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,718.45 : 496,414.95 = 198,570.03 : x
  2. Step 2: Convert to fraction form
    359,718.45/496,414.95 = 198,570.03/x
  3. Step 3: Cross multiply
    359,718.45x = 496,414.95 × 198,570.03
  4. Step 4: Simplify right side
    359,718.45x = 98,573,131,513.95
  5. Step 5: Solve for x
    x = 98,573,131,513.95/359,718.45
  6. Step 6: Final answer
    x = 274,028.57

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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.