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Finding the Fourth Proportional to 397,331.55, 548,324.39 and 216,044.71

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Solution

The fourth proportional to 397,331.55, 548,324.39 and 216,044.71 is: 298,145.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,331.55 : 548,324.39 = 216,044.71 : x
  2. Step 2: Convert to fraction form
    397,331.55/548,324.39 = 216,044.71/x
  3. Step 3: Cross multiply
    397,331.55x = 548,324.39 × 216,044.71
  4. Step 4: Simplify right side
    397,331.55x = 118,462,583,823.48
  5. Step 5: Solve for x
    x = 118,462,583,823.48/397,331.55
  6. Step 6: Final answer
    x = 298,145.42

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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.