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Finding the Fourth Proportional to 376,518.72, 519,596.46 and 206,763.60

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Solution

The fourth proportional to 376,518.72, 519,596.46 and 206,763.60 is: 285,334.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,518.72 : 519,596.46 = 206,763.60 : x
  2. Step 2: Convert to fraction form
    376,518.72/519,596.46 = 206,763.60/x
  3. Step 3: Cross multiply
    376,518.72x = 519,596.46 × 206,763.60
  4. Step 4: Simplify right side
    376,518.72x = 107,433,634,616.86
  5. Step 5: Solve for x
    x = 107,433,634,616.86/376,518.72
  6. Step 6: Final answer
    x = 285,334.11

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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.