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Finding the Fourth Proportional to 461,153.25, 636,391.49 and 259,949.25

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Solution

The fourth proportional to 461,153.25, 636,391.49 and 259,949.25 is: 358,729.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,153.25 : 636,391.49 = 259,949.25 : x
  2. Step 2: Convert to fraction form
    461,153.25/636,391.49 = 259,949.25/x
  3. Step 3: Cross multiply
    461,153.25x = 636,391.49 × 259,949.25
  4. Step 4: Simplify right side
    461,153.25x = 165,429,489,232.14
  5. Step 5: Solve for x
    x = 165,429,489,232.14/461,153.25
  6. Step 6: Final answer
    x = 358,729.97

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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.