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Finding the Fourth Proportional to 449,571.01, 671,076.93 and 392,819.42

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Solution

The fourth proportional to 449,571.01, 671,076.93 and 392,819.42 is: 586,363.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,571.01 : 671,076.93 = 392,819.42 : x
  2. Step 2: Convert to fraction form
    449,571.01/671,076.93 = 392,819.42/x
  3. Step 3: Cross multiply
    449,571.01x = 671,076.93 × 392,819.42
  4. Step 4: Simplify right side
    449,571.01x = 263,612,050,417.98
  5. Step 5: Solve for x
    x = 263,612,050,417.98/449,571.01
  6. Step 6: Final answer
    x = 586,363.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.