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Finding the Fourth Proportional to 397,350.05, 548,335.29 and 216,060.39

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Solution

The fourth proportional to 397,350.05, 548,335.29 and 216,060.39 is: 298,159.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,350.05 : 548,335.29 = 216,060.39 : x
  2. Step 2: Convert to fraction form
    397,350.05/548,335.29 = 216,060.39/x
  3. Step 3: Cross multiply
    397,350.05x = 548,335.29 × 216,060.39
  4. Step 4: Simplify right side
    397,350.05x = 118,473,536,608.16
  5. Step 5: Solve for x
    x = 118,473,536,608.16/397,350.05
  6. Step 6: Final answer
    x = 298,159.11

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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.