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Finding the Fourth Proportional to 591,292.34, 886,206.72 and 420,241.43

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Solution

The fourth proportional to 591,292.34, 886,206.72 and 420,241.43 is: 629,842.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,292.34 : 886,206.72 = 420,241.43 : x
  2. Step 2: Convert to fraction form
    591,292.34/886,206.72 = 420,241.43/x
  3. Step 3: Cross multiply
    591,292.34x = 886,206.72 × 420,241.43
  4. Step 4: Simplify right side
    591,292.34x = 372,420,783,079.83
  5. Step 5: Solve for x
    x = 372,420,783,079.83/591,292.34
  6. Step 6: Final answer
    x = 629,842.06

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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.