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Finding the Fourth Proportional to 606,460.20, 907,940.70 and 543,474.60

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Solution

The fourth proportional to 606,460.20, 907,940.70 and 543,474.60 is: 813,644.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,460.20 : 907,940.70 = 543,474.60 : x
  2. Step 2: Convert to fraction form
    606,460.20/907,940.70 = 543,474.60/x
  3. Step 3: Cross multiply
    606,460.20x = 907,940.70 × 543,474.60
  4. Step 4: Simplify right side
    606,460.20x = 493,442,708,756.22
  5. Step 5: Solve for x
    x = 493,442,708,756.22/606,460.20
  6. Step 6: Final answer
    x = 813,644.01

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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.