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Finding the Fourth Proportional to 329,337.78, 454,486.19 and 178,434.78

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Solution

The fourth proportional to 329,337.78, 454,486.19 and 178,434.78 is: 246,240.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,337.78 : 454,486.19 = 178,434.78 : x
  2. Step 2: Convert to fraction form
    329,337.78/454,486.19 = 178,434.78/x
  3. Step 3: Cross multiply
    329,337.78x = 454,486.19 × 178,434.78
  4. Step 4: Simplify right side
    329,337.78x = 81,096,142,433.51
  5. Step 5: Solve for x
    x = 81,096,142,433.51/329,337.78
  6. Step 6: Final answer
    x = 246,240.02

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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.