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Finding the Fourth Proportional to 531,610.44, 733,640.12 and 289,906.24

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Solution

The fourth proportional to 531,610.44, 733,640.12 and 289,906.24 is: 400,080.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,610.44 : 733,640.12 = 289,906.24 : x
  2. Step 2: Convert to fraction form
    531,610.44/733,640.12 = 289,906.24/x
  3. Step 3: Cross multiply
    531,610.44x = 733,640.12 × 289,906.24
  4. Step 4: Simplify right side
    531,610.44x = 212,686,848,702.35
  5. Step 5: Solve for x
    x = 212,686,848,702.35/531,610.44
  6. Step 6: Final answer
    x = 400,080.27

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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.