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Finding the Fourth Proportional to 406,562.20, 609,843.30 and 264,844.60

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Solution

The fourth proportional to 406,562.20, 609,843.30 and 264,844.60 is: 397,266.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,562.20 : 609,843.30 = 264,844.60 : x
  2. Step 2: Convert to fraction form
    406,562.20/609,843.30 = 264,844.60/x
  3. Step 3: Cross multiply
    406,562.20x = 609,843.30 × 264,844.60
  4. Step 4: Simplify right side
    406,562.20x = 161,513,704,851.18
  5. Step 5: Solve for x
    x = 161,513,704,851.18/406,562.20
  6. Step 6: Final answer
    x = 397,266.90

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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.