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Finding the Fourth Proportional to 359,820.28, 496,559.76 and 198,685.60

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Solution

The fourth proportional to 359,820.28, 496,559.76 and 198,685.60 is: 274,190.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,820.28 : 496,559.76 = 198,685.60 : x
  2. Step 2: Convert to fraction form
    359,820.28/496,559.76 = 198,685.60/x
  3. Step 3: Cross multiply
    359,820.28x = 496,559.76 × 198,685.60
  4. Step 4: Simplify right side
    359,820.28x = 98,659,273,851.46
  5. Step 5: Solve for x
    x = 98,659,273,851.46/359,820.28
  6. Step 6: Final answer
    x = 274,190.42

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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.