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Finding the Fourth Proportional to 543,999.96, 816,138.36 and 319,550.22

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Solution

The fourth proportional to 543,999.96, 816,138.36 and 319,550.22 is: 479,406.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,999.96 : 816,138.36 = 319,550.22 : x
  2. Step 2: Convert to fraction form
    543,999.96/816,138.36 = 319,550.22/x
  3. Step 3: Cross multiply
    543,999.96x = 816,138.36 × 319,550.22
  4. Step 4: Simplify right side
    543,999.96x = 260,797,192,488.44
  5. Step 5: Solve for x
    x = 260,797,192,488.44/543,999.96
  6. Step 6: Final answer
    x = 479,406.64

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1.5x scale

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.