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Finding the Fourth Proportional to 613,197.66, 919,800.59 and 213,836.88

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Solution

The fourth proportional to 613,197.66, 919,800.59 and 213,836.88 is: 320,756.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,197.66 : 919,800.59 = 213,836.88 : x
  2. Step 2: Convert to fraction form
    613,197.66/919,800.59 = 213,836.88/x
  3. Step 3: Cross multiply
    613,197.66x = 919,800.59 × 213,836.88
  4. Step 4: Simplify right side
    613,197.66x = 196,687,288,387.76
  5. Step 5: Solve for x
    x = 196,687,288,387.76/613,197.66
  6. Step 6: Final answer
    x = 320,756.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.