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Finding the Fourth Proportional to 303,680.81, 419,079.56 and 176,364.61

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Solution

The fourth proportional to 303,680.81, 419,079.56 and 176,364.61 is: 243,383.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,680.81 : 419,079.56 = 176,364.61 : x
  2. Step 2: Convert to fraction form
    303,680.81/419,079.56 = 176,364.61/x
  3. Step 3: Cross multiply
    303,680.81x = 419,079.56 × 176,364.61
  4. Step 4: Simplify right side
    303,680.81x = 73,910,801,228.85
  5. Step 5: Solve for x
    x = 73,910,801,228.85/303,680.81
  6. Step 6: Final answer
    x = 243,383.18

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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.