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Finding the Fourth Proportional to 591,911.24, 816,840.66 and 323,639.24

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Solution

The fourth proportional to 591,911.24, 816,840.66 and 323,639.24 is: 446,623.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,911.24 : 816,840.66 = 323,639.24 : x
  2. Step 2: Convert to fraction form
    591,911.24/816,840.66 = 323,639.24/x
  3. Step 3: Cross multiply
    591,911.24x = 816,840.66 × 323,639.24
  4. Step 4: Simplify right side
    591,911.24x = 264,361,690,403.50
  5. Step 5: Solve for x
    x = 264,361,690,403.50/591,911.24
  6. Step 6: Final answer
    x = 446,623.87

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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.