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Finding the Fourth Proportional to 329,353.47, 454,508.09 and 178,450.47

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Solution

The fourth proportional to 329,353.47, 454,508.09 and 178,450.47 is: 246,261.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,353.47 : 454,508.09 = 178,450.47 : x
  2. Step 2: Convert to fraction form
    329,353.47/454,508.09 = 178,450.47/x
  3. Step 3: Cross multiply
    329,353.47x = 454,508.09 × 178,450.47
  4. Step 4: Simplify right side
    329,353.47x = 81,107,182,279.30
  5. Step 5: Solve for x
    x = 81,107,182,279.30/329,353.47
  6. Step 6: Final answer
    x = 246,261.81

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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.