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Finding the Fourth Proportional to 609,131.39, 840,611.26 and 333,484.63

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Solution

The fourth proportional to 609,131.39, 840,611.26 and 333,484.63 is: 460,214.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,131.39 : 840,611.26 = 333,484.63 : x
  2. Step 2: Convert to fraction form
    609,131.39/840,611.26 = 333,484.63/x
  3. Step 3: Cross multiply
    609,131.39x = 840,611.26 × 333,484.63
  4. Step 4: Simplify right side
    609,131.39x = 280,330,935,014.93
  5. Step 5: Solve for x
    x = 280,330,935,014.93/609,131.39
  6. Step 6: Final answer
    x = 460,214.23

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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.