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Finding the Fourth Proportional to 406,584.20, 609,876.30 and 264,866.60

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Solution

The fourth proportional to 406,584.20, 609,876.30 and 264,866.60 is: 397,299.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,584.20 : 609,876.30 = 264,866.60 : x
  2. Step 2: Convert to fraction form
    406,584.20/609,876.30 = 264,866.60/x
  3. Step 3: Cross multiply
    406,584.20x = 609,876.30 × 264,866.60
  4. Step 4: Simplify right side
    406,584.20x = 161,535,862,001.58
  5. Step 5: Solve for x
    x = 161,535,862,001.58/406,584.20
  6. Step 6: Final answer
    x = 397,299.90

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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.