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Finding the Fourth Proportional to 624,446.72, 936,767.64 and 203,624.72

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Solution

The fourth proportional to 624,446.72, 936,767.64 and 203,624.72 is: 305,468.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,446.72 : 936,767.64 = 203,624.72 : x
  2. Step 2: Convert to fraction form
    624,446.72/936,767.64 = 203,624.72/x
  3. Step 3: Cross multiply
    624,446.72x = 936,767.64 × 203,624.72
  4. Step 4: Simplify right side
    624,446.72x = 190,749,048,400.06
  5. Step 5: Solve for x
    x = 190,749,048,400.06/624,446.72
  6. Step 6: Final answer
    x = 305,468.89

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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.