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Finding the Fourth Proportional to 329,323.98, 454,467.54 and 178,420.98

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Solution

The fourth proportional to 329,323.98, 454,467.54 and 178,420.98 is: 246,221.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,323.98 : 454,467.54 = 178,420.98 : x
  2. Step 2: Convert to fraction form
    329,323.98/454,467.54 = 178,420.98/x
  3. Step 3: Cross multiply
    329,323.98x = 454,467.54 × 178,420.98
  4. Step 4: Simplify right side
    329,323.98x = 81,086,543,864.99
  5. Step 5: Solve for x
    x = 81,086,543,864.99/329,323.98
  6. Step 6: Final answer
    x = 246,221.19

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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.