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Finding the Fourth Proportional to 608,940.40, 913,410.60 and 165,708.40

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Solution

The fourth proportional to 608,940.40, 913,410.60 and 165,708.40 is: 248,562.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,940.40 : 913,410.60 = 165,708.40 : x
  2. Step 2: Convert to fraction form
    608,940.40/913,410.60 = 165,708.40/x
  3. Step 3: Cross multiply
    608,940.40x = 913,410.60 × 165,708.40
  4. Step 4: Simplify right side
    608,940.40x = 151,359,809,069.04
  5. Step 5: Solve for x
    x = 151,359,809,069.04/608,940.40
  6. Step 6: Final answer
    x = 248,562.60

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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.