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Finding the Fourth Proportional to 331,060.96, 456,438 and 240,548.32

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Solution

The fourth proportional to 331,060.96, 456,438 and 240,548.32 is: 331,647.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,060.96 : 456,438 = 240,548.32 : x
  2. Step 2: Convert to fraction form
    331,060.96/456,438 = 240,548.32/x
  3. Step 3: Cross multiply
    331,060.96x = 456,438 × 240,548.32
  4. Step 4: Simplify right side
    331,060.96x = 109,795,394,084.16
  5. Step 5: Solve for x
    x = 109,795,394,084.16/331,060.96
  6. Step 6: Final answer
    x = 331,647.06

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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.