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Finding the Fourth Proportional to 606,461.20, 907,942.20 and 543,475.60

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Solution

The fourth proportional to 606,461.20, 907,942.20 and 543,475.60 is: 813,645.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,461.20 : 907,942.20 = 543,475.60 : x
  2. Step 2: Convert to fraction form
    606,461.20/907,942.20 = 543,475.60/x
  3. Step 3: Cross multiply
    606,461.20x = 907,942.20 × 543,475.60
  4. Step 4: Simplify right side
    606,461.20x = 493,444,431,910.32
  5. Step 5: Solve for x
    x = 493,444,431,910.32/606,461.20
  6. Step 6: Final answer
    x = 813,645.51

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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.