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Finding the Fourth Proportional to 484,173.35, 726,260.09 and 129,188.69

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Solution

The fourth proportional to 484,173.35, 726,260.09 and 129,188.69 is: 193,783.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,173.35 : 726,260.09 = 129,188.69 : x
  2. Step 2: Convert to fraction form
    484,173.35/726,260.09 = 129,188.69/x
  3. Step 3: Cross multiply
    484,173.35x = 726,260.09 × 129,188.69
  4. Step 4: Simplify right side
    484,173.35x = 93,824,589,626.38
  5. Step 5: Solve for x
    x = 93,824,589,626.38/484,173.35
  6. Step 6: Final answer
    x = 193,783.05

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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.