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Finding the Fourth Proportional to 339,471.57, 468,086.40 and 216,802.74

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Solution

The fourth proportional to 339,471.57, 468,086.40 and 216,802.74 is: 298,942.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,471.57 : 468,086.40 = 216,802.74 : x
  2. Step 2: Convert to fraction form
    339,471.57/468,086.40 = 216,802.74/x
  3. Step 3: Cross multiply
    339,471.57x = 468,086.40 × 216,802.74
  4. Step 4: Simplify right side
    339,471.57x = 101,482,414,076.74
  5. Step 5: Solve for x
    x = 101,482,414,076.74/339,471.57
  6. Step 6: Final answer
    x = 298,942.31

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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.