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Finding the Fourth Proportional to 477,999.18, 659,662.65 and 263,136.96

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Solution

The fourth proportional to 477,999.18, 659,662.65 and 263,136.96 is: 363,142.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,999.18 : 659,662.65 = 263,136.96 : x
  2. Step 2: Convert to fraction form
    477,999.18/659,662.65 = 263,136.96/x
  3. Step 3: Cross multiply
    477,999.18x = 659,662.65 × 263,136.96
  4. Step 4: Simplify right side
    477,999.18x = 173,581,624,346.54
  5. Step 5: Solve for x
    x = 173,581,624,346.54/477,999.18
  6. Step 6: Final answer
    x = 363,142.10

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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.