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Finding the Fourth Proportional to 461,153.24, 691,863.52 and 191,231.24

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Solution

The fourth proportional to 461,153.24, 691,863.52 and 191,231.24 is: 286,902.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,153.24 : 691,863.52 = 191,231.24 : x
  2. Step 2: Convert to fraction form
    461,153.24/691,863.52 = 191,231.24/x
  3. Step 3: Cross multiply
    461,153.24x = 691,863.52 × 191,231.24
  4. Step 4: Simplify right side
    461,153.24x = 132,305,918,840.37
  5. Step 5: Solve for x
    x = 132,305,918,840.37/461,153.24
  6. Step 6: Final answer
    x = 286,902.29

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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.