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Finding the Fourth Proportional to 591,891, 816,809.58 and 323,619

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Solution

The fourth proportional to 591,891, 816,809.58 and 323,619 is: 446,594.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,891 : 816,809.58 = 323,619 : x
  2. Step 2: Convert to fraction form
    591,891/816,809.58 = 323,619/x
  3. Step 3: Cross multiply
    591,891x = 816,809.58 × 323,619
  4. Step 4: Simplify right side
    591,891x = 264,335,099,470.02
  5. Step 5: Solve for x
    x = 264,335,099,470.02/591,891
  6. Step 6: Final answer
    x = 446,594.22

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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.