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Finding the Fourth Proportional to 446,445.44, 669,761.76 and 130,876.64

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Solution

The fourth proportional to 446,445.44, 669,761.76 and 130,876.64 is: 196,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,445.44 : 669,761.76 = 130,876.64 : x
  2. Step 2: Convert to fraction form
    446,445.44/669,761.76 = 130,876.64/x
  3. Step 3: Cross multiply
    446,445.44x = 669,761.76 × 130,876.64
  4. Step 4: Simplify right side
    446,445.44x = 87,656,168,749.29
  5. Step 5: Solve for x
    x = 87,656,168,749.29/446,445.44
  6. Step 6: Final answer
    x = 196,342.40

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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.