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Finding the Fourth Proportional to 231,518.80, 346,759.80 and 190,046.80

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Solution

The fourth proportional to 231,518.80, 346,759.80 and 190,046.80 is: 284,644.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,518.80 : 346,759.80 = 190,046.80 : x
  2. Step 2: Convert to fraction form
    231,518.80/346,759.80 = 190,046.80/x
  3. Step 3: Cross multiply
    231,518.80x = 346,759.80 × 190,046.80
  4. Step 4: Simplify right side
    231,518.80x = 65,900,590,358.64
  5. Step 5: Solve for x
    x = 65,900,590,358.64/231,518.80
  6. Step 6: Final answer
    x = 284,644.66

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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.