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Finding the Fourth Proportional to 446,437.44, 669,749.76 and 130,868.64

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Solution

The fourth proportional to 446,437.44, 669,749.76 and 130,868.64 is: 196,330.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,437.44 : 669,749.76 = 130,868.64 : x
  2. Step 2: Convert to fraction form
    446,437.44/669,749.76 = 130,868.64/x
  3. Step 3: Cross multiply
    446,437.44x = 669,749.76 × 130,868.64
  4. Step 4: Simplify right side
    446,437.44x = 87,649,240,231.53
  5. Step 5: Solve for x
    x = 87,649,240,231.53/446,437.44
  6. Step 6: Final answer
    x = 196,330.40

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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.