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Finding the Fourth Proportional to 591,331.60, 816,020.20 and 323,059.60

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Solution

The fourth proportional to 591,331.60, 816,020.20 and 323,059.60 is: 445,812.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,331.60 : 816,020.20 = 323,059.60 : x
  2. Step 2: Convert to fraction form
    591,331.60/816,020.20 = 323,059.60/x
  3. Step 3: Cross multiply
    591,331.60x = 816,020.20 × 323,059.60
  4. Step 4: Simplify right side
    591,331.60x = 263,623,159,403.92
  5. Step 5: Solve for x
    x = 263,623,159,403.92/591,331.60
  6. Step 6: Final answer
    x = 445,812.74

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1.5x scale

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.