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Finding the Fourth Proportional to 666,193.23, 998,929.92 and 345,550.23

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Solution

The fourth proportional to 666,193.23, 998,929.92 and 345,550.23 is: 518,138.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,193.23 : 998,929.92 = 345,550.23 : x
  2. Step 2: Convert to fraction form
    666,193.23/998,929.92 = 345,550.23/x
  3. Step 3: Cross multiply
    666,193.23x = 998,929.92 × 345,550.23
  4. Step 4: Simplify right side
    666,193.23x = 345,180,463,609.88
  5. Step 5: Solve for x
    x = 345,180,463,609.88/666,193.23
  6. Step 6: Final answer
    x = 518,138.65

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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.