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Finding the Fourth Proportional to 412,607.72, 618,845.16 and 113,018.24

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Solution

The fourth proportional to 412,607.72, 618,845.16 and 113,018.24 is: 169,509.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,607.72 : 618,845.16 = 113,018.24 : x
  2. Step 2: Convert to fraction form
    412,607.72/618,845.16 = 113,018.24/x
  3. Step 3: Cross multiply
    412,607.72x = 618,845.16 × 113,018.24
  4. Step 4: Simplify right side
    412,607.72x = 69,940,789,305.65
  5. Step 5: Solve for x
    x = 69,940,789,305.65/412,607.72
  6. Step 6: Final answer
    x = 169,509.16

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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.