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Finding the Fourth Proportional to 609,542.28, 914,373.56 and 210,130.47

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Solution

The fourth proportional to 609,542.28, 914,373.56 and 210,130.47 is: 315,216.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,542.28 : 914,373.56 = 210,130.47 : x
  2. Step 2: Convert to fraction form
    609,542.28/914,373.56 = 210,130.47/x
  3. Step 3: Cross multiply
    609,542.28x = 914,373.56 × 210,130.47
  4. Step 4: Simplify right side
    609,542.28x = 192,137,745,918.37
  5. Step 5: Solve for x
    x = 192,137,745,918.37/609,542.28
  6. Step 6: Final answer
    x = 315,216.44

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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.