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Finding the Fourth Proportional to 412,404.05, 618,606.42 and 112,887.11

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Solution

The fourth proportional to 412,404.05, 618,606.42 and 112,887.11 is: 169,330.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,404.05 : 618,606.42 = 112,887.11 : x
  2. Step 2: Convert to fraction form
    412,404.05/618,606.42 = 112,887.11/x
  3. Step 3: Cross multiply
    412,404.05x = 618,606.42 × 112,887.11
  4. Step 4: Simplify right side
    412,404.05x = 69,832,692,104.44
  5. Step 5: Solve for x
    x = 69,832,692,104.44/412,404.05
  6. Step 6: Final answer
    x = 169,330.76

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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.