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Finding the Fourth Proportional to 469,201.19, 647,079.57 and 365,861

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Solution

The fourth proportional to 469,201.19, 647,079.57 and 365,861 is: 504,562.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,201.19 : 647,079.57 = 365,861 : x
  2. Step 2: Convert to fraction form
    469,201.19/647,079.57 = 365,861/x
  3. Step 3: Cross multiply
    469,201.19x = 647,079.57 × 365,861
  4. Step 4: Simplify right side
    469,201.19x = 236,741,178,559.77
  5. Step 5: Solve for x
    x = 236,741,178,559.77/469,201.19
  6. Step 6: Final answer
    x = 504,562.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.