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Finding the Fourth Proportional to 219,226.20, 328,839.30 and 174,611.40

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Solution

The fourth proportional to 219,226.20, 328,839.30 and 174,611.40 is: 261,917.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,226.20 : 328,839.30 = 174,611.40 : x
  2. Step 2: Convert to fraction form
    219,226.20/328,839.30 = 174,611.40/x
  3. Step 3: Cross multiply
    219,226.20x = 328,839.30 × 174,611.40
  4. Step 4: Simplify right side
    219,226.20x = 57,419,090,548.02
  5. Step 5: Solve for x
    x = 57,419,090,548.02/219,226.20
  6. Step 6: Final answer
    x = 261,917.10

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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.