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Finding the Fourth Proportional to 3,553,234.40, 5,321,978.40 and 2,923,378.40

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Solution

The fourth proportional to 3,553,234.40, 5,321,978.40 and 2,923,378.40 is: 4,378,590.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,553,234.40 : 5,321,978.40 = 2,923,378.40 : x
  2. Step 2: Convert to fraction form
    3,553,234.40/5,321,978.40 = 2,923,378.40/x
  3. Step 3: Cross multiply
    3,553,234.40x = 5,321,978.40 × 2,923,378.40
  4. Step 4: Simplify right side
    3,553,234.40x = 15,558,156,699,826.56
  5. Step 5: Solve for x
    x = 15,558,156,699,826.56/3,553,234.40
  6. Step 6: Final answer
    x = 4,378,590.02

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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.