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Finding the Fourth Proportional to 494,366.32, 681,863.16 and 324,538.48

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Solution

The fourth proportional to 494,366.32, 681,863.16 and 324,538.48 is: 447,625.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,366.32 : 681,863.16 = 324,538.48 : x
  2. Step 2: Convert to fraction form
    494,366.32/681,863.16 = 324,538.48/x
  3. Step 3: Cross multiply
    494,366.32x = 681,863.16 × 324,538.48
  4. Step 4: Simplify right side
    494,366.32x = 221,290,833,514.40
  5. Step 5: Solve for x
    x = 221,290,833,514.40/494,366.32
  6. Step 6: Final answer
    x = 447,625.22

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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.