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Finding the Fourth Proportional to 442,876.20, 664,314.30 and 176,499.60

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Solution

The fourth proportional to 442,876.20, 664,314.30 and 176,499.60 is: 264,749.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,876.20 : 664,314.30 = 176,499.60 : x
  2. Step 2: Convert to fraction form
    442,876.20/664,314.30 = 176,499.60/x
  3. Step 3: Cross multiply
    442,876.20x = 664,314.30 × 176,499.60
  4. Step 4: Simplify right side
    442,876.20x = 117,251,208,224.28
  5. Step 5: Solve for x
    x = 117,251,208,224.28/442,876.20
  6. Step 6: Final answer
    x = 264,749.40

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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.