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Finding the Fourth Proportional to 374,628.30, 561,942.45 and 372,003.90

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Solution

The fourth proportional to 374,628.30, 561,942.45 and 372,003.90 is: 558,005.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,628.30 : 561,942.45 = 372,003.90 : x
  2. Step 2: Convert to fraction form
    374,628.30/561,942.45 = 372,003.90/x
  3. Step 3: Cross multiply
    374,628.30x = 561,942.45 × 372,003.90
  4. Step 4: Simplify right side
    374,628.30x = 209,044,782,975.56
  5. Step 5: Solve for x
    x = 209,044,782,975.56/374,628.30
  6. Step 6: Final answer
    x = 558,005.85

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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.