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Finding the Fourth Proportional to 359,685.45, 496,363.14 and 198,540.45

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Solution

The fourth proportional to 359,685.45, 496,363.14 and 198,540.45 is: 273,984.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,685.45 : 496,363.14 = 198,540.45 : x
  2. Step 2: Convert to fraction form
    359,685.45/496,363.14 = 198,540.45/x
  3. Step 3: Cross multiply
    359,685.45x = 496,363.14 × 198,540.45
  4. Step 4: Simplify right side
    359,685.45x = 98,548,161,179.01
  5. Step 5: Solve for x
    x = 98,548,161,179.01/359,685.45
  6. Step 6: Final answer
    x = 273,984.29

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1.5x scale

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.