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Finding the Fourth Proportional to 325,043.56, 448,655.46 and 189,109.48

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Solution

The fourth proportional to 325,043.56, 448,655.46 and 189,109.48 is: 261,026.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,043.56 : 448,655.46 = 189,109.48 : x
  2. Step 2: Convert to fraction form
    325,043.56/448,655.46 = 189,109.48/x
  3. Step 3: Cross multiply
    325,043.56x = 448,655.46 × 189,109.48
  4. Step 4: Simplify right side
    325,043.56x = 84,845,000,739.76
  5. Step 5: Solve for x
    x = 84,845,000,739.76/325,043.56
  6. Step 6: Final answer
    x = 261,026.56

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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.