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Finding the Fourth Proportional to 329,686.38, 454,967.46 and 178,783.38

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Solution

The fourth proportional to 329,686.38, 454,967.46 and 178,783.38 is: 246,721.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,686.38 : 454,967.46 = 178,783.38 : x
  2. Step 2: Convert to fraction form
    329,686.38/454,967.46 = 178,783.38/x
  3. Step 3: Cross multiply
    329,686.38x = 454,967.46 × 178,783.38
  4. Step 4: Simplify right side
    329,686.38x = 81,340,620,288.81
  5. Step 5: Solve for x
    x = 81,340,620,288.81/329,686.38
  6. Step 6: Final answer
    x = 246,721.20

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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.