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Finding the Fourth Proportional to 329,326.78, 454,470.60 and 178,423.78

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Solution

The fourth proportional to 329,326.78, 454,470.60 and 178,423.78 is: 246,224.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,326.78 : 454,470.60 = 178,423.78 : x
  2. Step 2: Convert to fraction form
    329,326.78/454,470.60 = 178,423.78/x
  3. Step 3: Cross multiply
    329,326.78x = 454,470.60 × 178,423.78
  4. Step 4: Simplify right side
    329,326.78x = 81,088,362,350.87
  5. Step 5: Solve for x
    x = 81,088,362,350.87/329,326.78
  6. Step 6: Final answer
    x = 246,224.62

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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.