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Finding the Fourth Proportional to 348,544.60, 521,520.90 and 255,232.60

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Solution

The fourth proportional to 348,544.60, 521,520.90 and 255,232.60 is: 381,899.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,544.60 : 521,520.90 = 255,232.60 : x
  2. Step 2: Convert to fraction form
    348,544.60/521,520.90 = 255,232.60/x
  3. Step 3: Cross multiply
    348,544.60x = 521,520.90 × 255,232.60
  4. Step 4: Simplify right side
    348,544.60x = 133,109,135,261.34
  5. Step 5: Solve for x
    x = 133,109,135,261.34/348,544.60
  6. Step 6: Final answer
    x = 381,899.86

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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.