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Finding the Fourth Proportional to 613,284.84, 919,593.36 and 213,818.22

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Solution

The fourth proportional to 613,284.84, 919,593.36 and 213,818.22 is: 320,610.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,284.84 : 919,593.36 = 213,818.22 : x
  2. Step 2: Convert to fraction form
    613,284.84/919,593.36 = 213,818.22/x
  3. Step 3: Cross multiply
    613,284.84x = 919,593.36 × 213,818.22
  4. Step 4: Simplify right side
    613,284.84x = 196,625,815,359.02
  5. Step 5: Solve for x
    x = 196,625,815,359.02/613,284.84
  6. Step 6: Final answer
    x = 320,610.92

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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.