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Finding the Fourth Proportional to 406,279.80, 609,516.90 and 195,744.60

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Solution

The fourth proportional to 406,279.80, 609,516.90 and 195,744.60 is: 293,663.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,279.80 : 609,516.90 = 195,744.60 : x
  2. Step 2: Convert to fraction form
    406,279.80/609,516.90 = 195,744.60/x
  3. Step 3: Cross multiply
    406,279.80x = 609,516.90 × 195,744.60
  4. Step 4: Simplify right side
    406,279.80x = 119,309,641,783.74
  5. Step 5: Solve for x
    x = 119,309,641,783.74/406,279.80
  6. Step 6: Final answer
    x = 293,663.73

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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.