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Finding the Fourth Proportional to 607,322.20, 910,983.30 and 512,843.80

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Solution

The fourth proportional to 607,322.20, 910,983.30 and 512,843.80 is: 769,265.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,322.20 : 910,983.30 = 512,843.80 : x
  2. Step 2: Convert to fraction form
    607,322.20/910,983.30 = 512,843.80/x
  3. Step 3: Cross multiply
    607,322.20x = 910,983.30 × 512,843.80
  4. Step 4: Simplify right side
    607,322.20x = 467,192,137,308.54
  5. Step 5: Solve for x
    x = 467,192,137,308.54/607,322.20
  6. Step 6: Final answer
    x = 769,265.70

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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.