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Finding the Fourth Proportional to 483,618.20, 666,689.72 and 337,971.80

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Solution

The fourth proportional to 483,618.20, 666,689.72 and 337,971.80 is: 465,909.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,618.20 : 666,689.72 = 337,971.80 : x
  2. Step 2: Convert to fraction form
    483,618.20/666,689.72 = 337,971.80/x
  3. Step 3: Cross multiply
    483,618.20x = 666,689.72 × 337,971.80
  4. Step 4: Simplify right side
    483,618.20x = 225,322,324,709.90
  5. Step 5: Solve for x
    x = 225,322,324,709.90/483,618.20
  6. Step 6: Final answer
    x = 465,909.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.