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Finding the Fourth Proportional to 626,082.12, 863,992.44 and 339,601.86

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Solution

The fourth proportional to 626,082.12, 863,992.44 and 339,601.86 is: 468,650.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,082.12 : 863,992.44 = 339,601.86 : x
  2. Step 2: Convert to fraction form
    626,082.12/863,992.44 = 339,601.86/x
  3. Step 3: Cross multiply
    626,082.12x = 863,992.44 × 339,601.86
  4. Step 4: Simplify right side
    626,082.12x = 293,413,439,649.94
  5. Step 5: Solve for x
    x = 293,413,439,649.94/626,082.12
  6. Step 6: Final answer
    x = 468,650.09

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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.