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Finding the Fourth Proportional to 366,198.96, 548,642.34 and 129,390.60

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Solution

The fourth proportional to 366,198.96, 548,642.34 and 129,390.60 is: 193,854.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,198.96 : 548,642.34 = 129,390.60 : x
  2. Step 2: Convert to fraction form
    366,198.96/548,642.34 = 129,390.60/x
  3. Step 3: Cross multiply
    366,198.96x = 548,642.34 × 129,390.60
  4. Step 4: Simplify right side
    366,198.96x = 70,989,161,558.00
  5. Step 5: Solve for x
    x = 70,989,161,558.00/366,198.96
  6. Step 6: Final answer
    x = 193,854.08

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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.