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Finding the Fourth Proportional to 406,564.70, 609,604.05 and 248,906.30

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Solution

The fourth proportional to 406,564.70, 609,604.05 and 248,906.30 is: 373,210.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,564.70 : 609,604.05 = 248,906.30 : x
  2. Step 2: Convert to fraction form
    406,564.70/609,604.05 = 248,906.30/x
  3. Step 3: Cross multiply
    406,564.70x = 609,604.05 × 248,906.30
  4. Step 4: Simplify right side
    406,564.70x = 151,734,288,550.52
  5. Step 5: Solve for x
    x = 151,734,288,550.52/406,564.70
  6. Step 6: Final answer
    x = 373,210.68

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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.