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Finding the Fourth Proportional to 414,410.92, 621,616.52 and 186,440.20

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Solution

The fourth proportional to 414,410.92, 621,616.52 and 186,440.20 is: 279,660.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,410.92 : 621,616.52 = 186,440.20 : x
  2. Step 2: Convert to fraction form
    414,410.92/621,616.52 = 186,440.20/x
  3. Step 3: Cross multiply
    414,410.92x = 621,616.52 × 186,440.20
  4. Step 4: Simplify right side
    414,410.92x = 115,894,308,312.10
  5. Step 5: Solve for x
    x = 115,894,308,312.10/414,410.92
  6. Step 6: Final answer
    x = 279,660.36

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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.