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Finding the Fourth Proportional to 330,881.80, 496,322.70 and 164,648.20

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Solution

The fourth proportional to 330,881.80, 496,322.70 and 164,648.20 is: 246,972.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,881.80 : 496,322.70 = 164,648.20 : x
  2. Step 2: Convert to fraction form
    330,881.80/496,322.70 = 164,648.20/x
  3. Step 3: Cross multiply
    330,881.80x = 496,322.70 × 164,648.20
  4. Step 4: Simplify right side
    330,881.80x = 81,718,639,174.14
  5. Step 5: Solve for x
    x = 81,718,639,174.14/330,881.80
  6. Step 6: Final answer
    x = 246,972.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.