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Finding the Fourth Proportional to 296,578.62, 444,911.31 and 86,189.22

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Solution

The fourth proportional to 296,578.62, 444,911.31 and 86,189.22 is: 129,296.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,578.62 : 444,911.31 = 86,189.22 : x
  2. Step 2: Convert to fraction form
    296,578.62/444,911.31 = 86,189.22/x
  3. Step 3: Cross multiply
    296,578.62x = 444,911.31 × 86,189.22
  4. Step 4: Simplify right side
    296,578.62x = 38,346,558,778.08
  5. Step 5: Solve for x
    x = 38,346,558,778.08/296,578.62
  6. Step 6: Final answer
    x = 129,296.44

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1.5x scale

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.