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Finding the Fourth Proportional to 483,947.88, 724,502.34 and 339,352.38

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Solution

The fourth proportional to 483,947.88, 724,502.34 and 339,352.38 is: 508,033.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,947.88 : 724,502.34 = 339,352.38 : x
  2. Step 2: Convert to fraction form
    483,947.88/724,502.34 = 339,352.38/x
  3. Step 3: Cross multiply
    483,947.88x = 724,502.34 × 339,352.38
  4. Step 4: Simplify right side
    483,947.88x = 245,861,593,394.57
  5. Step 5: Solve for x
    x = 245,861,593,394.57/483,947.88
  6. Step 6: Final answer
    x = 508,033.21

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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.