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Finding the Fourth Proportional to 307,745.60, 461,618.40 and 174,574.40

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Solution

The fourth proportional to 307,745.60, 461,618.40 and 174,574.40 is: 261,861.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,745.60 : 461,618.40 = 174,574.40 : x
  2. Step 2: Convert to fraction form
    307,745.60/461,618.40 = 174,574.40/x
  3. Step 3: Cross multiply
    307,745.60x = 461,618.40 × 174,574.40
  4. Step 4: Simplify right side
    307,745.60x = 80,586,755,208.96
  5. Step 5: Solve for x
    x = 80,586,755,208.96/307,745.60
  6. Step 6: Final answer
    x = 261,861.60

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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.