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Finding the Fourth Proportional to 619,673.97, 929,230.57 and 220,325.38

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Solution

The fourth proportional to 619,673.97, 929,230.57 and 220,325.38 is: 330,388.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,673.97 : 929,230.57 = 220,325.38 : x
  2. Step 2: Convert to fraction form
    619,673.97/929,230.57 = 220,325.38/x
  3. Step 3: Cross multiply
    619,673.97x = 929,230.57 × 220,325.38
  4. Step 4: Simplify right side
    619,673.97x = 204,733,078,442.87
  5. Step 5: Solve for x
    x = 204,733,078,442.87/619,673.97
  6. Step 6: Final answer
    x = 330,388.38

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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.