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Finding the Fourth Proportional to 308,447.45, 425,658.62 and 179,416.88

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Solution

The fourth proportional to 308,447.45, 425,658.62 and 179,416.88 is: 247,595.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,447.45 : 425,658.62 = 179,416.88 : x
  2. Step 2: Convert to fraction form
    308,447.45/425,658.62 = 179,416.88/x
  3. Step 3: Cross multiply
    308,447.45x = 425,658.62 × 179,416.88
  4. Step 4: Simplify right side
    308,447.45x = 76,370,341,545.51
  5. Step 5: Solve for x
    x = 76,370,341,545.51/308,447.45
  6. Step 6: Final answer
    x = 247,595.96

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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.