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Finding the Fourth Proportional to 359,986.32, 496,778.76 and 198,851.76

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Solution

The fourth proportional to 359,986.32, 496,778.76 and 198,851.76 is: 274,414.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,986.32 : 496,778.76 = 198,851.76 : x
  2. Step 2: Convert to fraction form
    359,986.32/496,778.76 = 198,851.76/x
  3. Step 3: Cross multiply
    359,986.32x = 496,778.76 × 198,851.76
  4. Step 4: Simplify right side
    359,986.32x = 98,785,330,756.62
  5. Step 5: Solve for x
    x = 98,785,330,756.62/359,986.32
  6. Step 6: Final answer
    x = 274,414.12

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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.