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Finding the Fourth Proportional to 662,316.96, 993,672.96 and 307,629.12

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Solution

The fourth proportional to 662,316.96, 993,672.96 and 307,629.12 is: 461,535.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,316.96 : 993,672.96 = 307,629.12 : x
  2. Step 2: Convert to fraction form
    662,316.96/993,672.96 = 307,629.12/x
  3. Step 3: Cross multiply
    662,316.96x = 993,672.96 × 307,629.12
  4. Step 4: Simplify right side
    662,316.96x = 305,682,738,252.60
  5. Step 5: Solve for x
    x = 305,682,738,252.60/662,316.96
  6. Step 6: Final answer
    x = 461,535.42

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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.