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Finding the Fourth Proportional to 442,870.20, 664,305.30 and 176,493.60

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Solution

The fourth proportional to 442,870.20, 664,305.30 and 176,493.60 is: 264,740.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,870.20 : 664,305.30 = 176,493.60 : x
  2. Step 2: Convert to fraction form
    442,870.20/664,305.30 = 176,493.60/x
  3. Step 3: Cross multiply
    442,870.20x = 664,305.30 × 176,493.60
  4. Step 4: Simplify right side
    442,870.20x = 117,245,633,896.08
  5. Step 5: Solve for x
    x = 117,245,633,896.08/442,870.20
  6. Step 6: Final answer
    x = 264,740.40

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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.