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Finding the Fourth Proportional to 436,221.81, 601,740.23 and 254,895.21

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Solution

The fourth proportional to 436,221.81, 601,740.23 and 254,895.21 is: 351,611.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,221.81 : 601,740.23 = 254,895.21 : x
  2. Step 2: Convert to fraction form
    436,221.81/601,740.23 = 254,895.21/x
  3. Step 3: Cross multiply
    436,221.81x = 601,740.23 × 254,895.21
  4. Step 4: Simplify right side
    436,221.81x = 153,380,701,016.82
  5. Step 5: Solve for x
    x = 153,380,701,016.82/436,221.81
  6. Step 6: Final answer
    x = 351,611.72

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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.