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Finding the Fourth Proportional to 331,777.22, 497,665.56 and 82,459.22

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Solution

The fourth proportional to 331,777.22, 497,665.56 and 82,459.22 is: 123,688.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,777.22 : 497,665.56 = 82,459.22 : x
  2. Step 2: Convert to fraction form
    331,777.22/497,665.56 = 82,459.22/x
  3. Step 3: Cross multiply
    331,777.22x = 497,665.56 × 82,459.22
  4. Step 4: Simplify right side
    331,777.22x = 41,037,113,898.46
  5. Step 5: Solve for x
    x = 41,037,113,898.46/331,777.22
  6. Step 6: Final answer
    x = 123,688.76

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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.