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Finding the Fourth Proportional to 493,622.40, 740,433.60 and 119,645.40

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Solution

The fourth proportional to 493,622.40, 740,433.60 and 119,645.40 is: 179,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,622.40 : 740,433.60 = 119,645.40 : x
  2. Step 2: Convert to fraction form
    493,622.40/740,433.60 = 119,645.40/x
  3. Step 3: Cross multiply
    493,622.40x = 740,433.60 × 119,645.40
  4. Step 4: Simplify right side
    493,622.40x = 88,589,474,245.44
  5. Step 5: Solve for x
    x = 88,589,474,245.44/493,622.40
  6. Step 6: Final answer
    x = 179,468.10

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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.