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Finding the Fourth Proportional to 331,452.60, 457,376.70 and 186,247.32

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Solution

The fourth proportional to 331,452.60, 457,376.70 and 186,247.32 is: 257,005.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,452.60 : 457,376.70 = 186,247.32 : x
  2. Step 2: Convert to fraction form
    331,452.60/457,376.70 = 186,247.32/x
  3. Step 3: Cross multiply
    331,452.60x = 457,376.70 × 186,247.32
  4. Step 4: Simplify right side
    331,452.60x = 85,185,184,605.44
  5. Step 5: Solve for x
    x = 85,185,184,605.44/331,452.60
  6. Step 6: Final answer
    x = 257,005.63

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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.