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Finding the Fourth Proportional to 395,400.70, 593,101.05 and 377,029.90

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Solution

The fourth proportional to 395,400.70, 593,101.05 and 377,029.90 is: 565,544.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,400.70 : 593,101.05 = 377,029.90 : x
  2. Step 2: Convert to fraction form
    395,400.70/593,101.05 = 377,029.90/x
  3. Step 3: Cross multiply
    395,400.70x = 593,101.05 × 377,029.90
  4. Step 4: Simplify right side
    395,400.70x = 223,616,829,571.40
  5. Step 5: Solve for x
    x = 223,616,829,571.40/395,400.70
  6. Step 6: Final answer
    x = 565,544.85

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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.