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Finding the Fourth Proportional to 409,099.20, 613,648.80 and 373,669.80

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Solution

The fourth proportional to 409,099.20, 613,648.80 and 373,669.80 is: 560,504.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,099.20 : 613,648.80 = 373,669.80 : x
  2. Step 2: Convert to fraction form
    409,099.20/613,648.80 = 373,669.80/x
  3. Step 3: Cross multiply
    409,099.20x = 613,648.80 × 373,669.80
  4. Step 4: Simplify right side
    409,099.20x = 229,302,024,366.24
  5. Step 5: Solve for x
    x = 229,302,024,366.24/409,099.20
  6. Step 6: Final answer
    x = 560,504.70

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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.