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Finding the Fourth Proportional to 339,261.86, 468,116.25 and 216,818.25

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Solution

The fourth proportional to 339,261.86, 468,116.25 and 216,818.25 is: 299,167.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,261.86 : 468,116.25 = 216,818.25 : x
  2. Step 2: Convert to fraction form
    339,261.86/468,116.25 = 216,818.25/x
  3. Step 3: Cross multiply
    339,261.86x = 468,116.25 × 216,818.25
  4. Step 4: Simplify right side
    339,261.86x = 101,496,146,121.56
  5. Step 5: Solve for x
    x = 101,496,146,121.56/339,261.86
  6. Step 6: Final answer
    x = 299,167.57

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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.