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Finding the Fourth Proportional to 447,608.50, 617,699.73 and 246,404.50

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Solution

The fourth proportional to 447,608.50, 617,699.73 and 246,404.50 is: 340,038.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,608.50 : 617,699.73 = 246,404.50 : x
  2. Step 2: Convert to fraction form
    447,608.50/617,699.73 = 246,404.50/x
  3. Step 3: Cross multiply
    447,608.50x = 617,699.73 × 246,404.50
  4. Step 4: Simplify right side
    447,608.50x = 152,203,993,120.79
  5. Step 5: Solve for x
    x = 152,203,993,120.79/447,608.50
  6. Step 6: Final answer
    x = 340,038.21

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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.