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Finding the Fourth Proportional to 308,445.45, 425,655.86 and 179,414.88

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Solution

The fourth proportional to 308,445.45, 425,655.86 and 179,414.88 is: 247,593.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,445.45 : 425,655.86 = 179,414.88 : x
  2. Step 2: Convert to fraction form
    308,445.45/425,655.86 = 179,414.88/x
  3. Step 3: Cross multiply
    308,445.45x = 425,655.86 × 179,414.88
  4. Step 4: Simplify right side
    308,445.45x = 76,368,994,146.12
  5. Step 5: Solve for x
    x = 76,368,994,146.12/308,445.45
  6. Step 6: Final answer
    x = 247,593.19

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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.