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Finding the Fourth Proportional to 293,654.11, 405,438.13 and 225,549.56

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Solution

The fourth proportional to 293,654.11, 405,438.13 and 225,549.56 is: 311,408.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,654.11 : 405,438.13 = 225,549.56 : x
  2. Step 2: Convert to fraction form
    293,654.11/405,438.13 = 225,549.56/x
  3. Step 3: Cross multiply
    293,654.11x = 405,438.13 × 225,549.56
  4. Step 4: Simplify right side
    293,654.11x = 91,446,393,758.61
  5. Step 5: Solve for x
    x = 91,446,393,758.61/293,654.11
  6. Step 6: Final answer
    x = 311,408.53

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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.