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Finding the Fourth Proportional to 376,261.30, 519,240.60 and 225,358.30

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Solution

The fourth proportional to 376,261.30, 519,240.60 and 225,358.30 is: 310,994.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,261.30 : 519,240.60 = 225,358.30 : x
  2. Step 2: Convert to fraction form
    376,261.30/519,240.60 = 225,358.30/x
  3. Step 3: Cross multiply
    376,261.30x = 519,240.60 × 225,358.30
  4. Step 4: Simplify right side
    376,261.30x = 117,015,178,906.98
  5. Step 5: Solve for x
    x = 117,015,178,906.98/376,261.30
  6. Step 6: Final answer
    x = 310,994.46

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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.