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Finding the Fourth Proportional to 269,212.60, 403,818.90 and 231,814.90

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Solution

The fourth proportional to 269,212.60, 403,818.90 and 231,814.90 is: 347,722.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,212.60 : 403,818.90 = 231,814.90 : x
  2. Step 2: Convert to fraction form
    269,212.60/403,818.90 = 231,814.90/x
  3. Step 3: Cross multiply
    269,212.60x = 403,818.90 × 231,814.90
  4. Step 4: Simplify right side
    269,212.60x = 93,611,237,921.61
  5. Step 5: Solve for x
    x = 93,611,237,921.61/269,212.60
  6. Step 6: Final answer
    x = 347,722.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.