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Finding the Fourth Proportional to 414,179.60, 621,269.40 and 366,940.40

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Solution

The fourth proportional to 414,179.60, 621,269.40 and 366,940.40 is: 550,410.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,179.60 : 621,269.40 = 366,940.40 : x
  2. Step 2: Convert to fraction form
    414,179.60/621,269.40 = 366,940.40/x
  3. Step 3: Cross multiply
    414,179.60x = 621,269.40 × 366,940.40
  4. Step 4: Simplify right side
    414,179.60x = 227,968,842,143.76
  5. Step 5: Solve for x
    x = 227,968,842,143.76/414,179.60
  6. Step 6: Final answer
    x = 550,410.60

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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.