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Finding the Fourth Proportional to 329,351.72, 454,505.68 and 178,448.72

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Solution

The fourth proportional to 329,351.72, 454,505.68 and 178,448.72 is: 246,259.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,351.72 : 454,505.68 = 178,448.72 : x
  2. Step 2: Convert to fraction form
    329,351.72/454,505.68 = 178,448.72/x
  3. Step 3: Cross multiply
    329,351.72x = 454,505.68 × 178,448.72
  4. Step 4: Simplify right side
    329,351.72x = 81,105,957,518.87
  5. Step 5: Solve for x
    x = 81,105,957,518.87/329,351.72
  6. Step 6: Final answer
    x = 246,259.40

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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.