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Finding the Fourth Proportional to 465,767.54, 642,759.09 and 253,799.54

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Solution

The fourth proportional to 465,767.54, 642,759.09 and 253,799.54 is: 350,243.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,767.54 : 642,759.09 = 253,799.54 : x
  2. Step 2: Convert to fraction form
    465,767.54/642,759.09 = 253,799.54/x
  3. Step 3: Cross multiply
    465,767.54x = 642,759.09 × 253,799.54
  4. Step 4: Simplify right side
    465,767.54x = 163,131,961,372.82
  5. Step 5: Solve for x
    x = 163,131,961,372.82/465,767.54
  6. Step 6: Final answer
    x = 350,243.30

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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.