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Finding the Fourth Proportional to 306,492.91, 422,953.62 and 177,436.85

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Solution

The fourth proportional to 306,492.91, 422,953.62 and 177,436.85 is: 244,859.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,492.91 : 422,953.62 = 177,436.85 : x
  2. Step 2: Convert to fraction form
    306,492.91/422,953.62 = 177,436.85/x
  3. Step 3: Cross multiply
    306,492.91x = 422,953.62 × 177,436.85
  4. Step 4: Simplify right side
    306,492.91x = 75,047,555,248.74
  5. Step 5: Solve for x
    x = 75,047,555,248.74/306,492.91
  6. Step 6: Final answer
    x = 244,859.03

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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.