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Finding the Fourth Proportional to 397,343.59, 548,336.87 and 216,057.49

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Solution

The fourth proportional to 397,343.59, 548,336.87 and 216,057.49 is: 298,160.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,343.59 : 548,336.87 = 216,057.49 : x
  2. Step 2: Convert to fraction form
    397,343.59/548,336.87 = 216,057.49/x
  3. Step 3: Cross multiply
    397,343.59x = 548,336.87 × 216,057.49
  4. Step 4: Simplify right side
    397,343.59x = 118,472,286,726.37
  5. Step 5: Solve for x
    x = 118,472,286,726.37/397,343.59
  6. Step 6: Final answer
    x = 298,160.81

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1.5x scale

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.