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Finding the Fourth Proportional to 329,005.45, 454,028.97 and 178,102.45

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Solution

The fourth proportional to 329,005.45, 454,028.97 and 178,102.45 is: 245,782.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,005.45 : 454,028.97 = 178,102.45 : x
  2. Step 2: Convert to fraction form
    329,005.45/454,028.97 = 178,102.45/x
  3. Step 3: Cross multiply
    329,005.45x = 454,028.97 × 178,102.45
  4. Step 4: Simplify right side
    329,005.45x = 80,863,671,927.98
  5. Step 5: Solve for x
    x = 80,863,671,927.98/329,005.45
  6. Step 6: Final answer
    x = 245,782.17

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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.