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Finding the Fourth Proportional to 608,606.40, 913,687.20 and 324,523.20

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Solution

The fourth proportional to 608,606.40, 913,687.20 and 324,523.20 is: 487,199.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,606.40 : 913,687.20 = 324,523.20 : x
  2. Step 2: Convert to fraction form
    608,606.40/913,687.20 = 324,523.20/x
  3. Step 3: Cross multiply
    608,606.40x = 913,687.20 × 324,523.20
  4. Step 4: Simplify right side
    608,606.40x = 296,512,693,943.04
  5. Step 5: Solve for x
    x = 296,512,693,943.04/608,606.40
  6. Step 6: Final answer
    x = 487,199.43

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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.