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Finding the Fourth Proportional to 303,785.64, 419,121.54 and 176,414.76

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Solution

The fourth proportional to 303,785.64, 419,121.54 and 176,414.76 is: 243,392.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,785.64 : 419,121.54 = 176,414.76 : x
  2. Step 2: Convert to fraction form
    303,785.64/419,121.54 = 176,414.76/x
  3. Step 3: Cross multiply
    303,785.64x = 419,121.54 × 176,414.76
  4. Step 4: Simplify right side
    303,785.64x = 73,939,225,889.93
  5. Step 5: Solve for x
    x = 73,939,225,889.93/303,785.64
  6. Step 6: Final answer
    x = 243,392.76

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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.