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Finding the Fourth Proportional to 376,355.96, 519,378.94 and 213,012.46

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Solution

The fourth proportional to 376,355.96, 519,378.94 and 213,012.46 is: 293,961.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,355.96 : 519,378.94 = 213,012.46 : x
  2. Step 2: Convert to fraction form
    376,355.96/519,378.94 = 213,012.46/x
  3. Step 3: Cross multiply
    376,355.96x = 519,378.94 × 213,012.46
  4. Step 4: Simplify right side
    376,355.96x = 110,634,183,451.22
  5. Step 5: Solve for x
    x = 110,634,183,451.22/376,355.96
  6. Step 6: Final answer
    x = 293,961.56

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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.