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Finding the Fourth Proportional to 447,793.15, 617,301.73 and 340,176.35

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Solution

The fourth proportional to 447,793.15, 617,301.73 and 340,176.35 is: 468,947.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,793.15 : 617,301.73 = 340,176.35 : x
  2. Step 2: Convert to fraction form
    447,793.15/617,301.73 = 340,176.35/x
  3. Step 3: Cross multiply
    447,793.15x = 617,301.73 × 340,176.35
  4. Step 4: Simplify right side
    447,793.15x = 209,991,446,966.39
  5. Step 5: Solve for x
    x = 209,991,446,966.39/447,793.15
  6. Step 6: Final answer
    x = 468,947.43

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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.