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Finding the Fourth Proportional to 397,513.56, 548,607.42 and 296,736.60

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Solution

The fourth proportional to 397,513.56, 548,607.42 and 296,736.60 is: 409,525.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,513.56 : 548,607.42 = 296,736.60 : x
  2. Step 2: Convert to fraction form
    397,513.56/548,607.42 = 296,736.60/x
  3. Step 3: Cross multiply
    397,513.56x = 548,607.42 × 296,736.60
  4. Step 4: Simplify right side
    397,513.56x = 162,791,900,545.57
  5. Step 5: Solve for x
    x = 162,791,900,545.57/397,513.56
  6. Step 6: Final answer
    x = 409,525.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.