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Finding the Fourth Proportional to 384,612.28, 576,901.68 and 118,399.84

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Solution

The fourth proportional to 384,612.28, 576,901.68 and 118,399.84 is: 177,594.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,612.28 : 576,901.68 = 118,399.84 : x
  2. Step 2: Convert to fraction form
    384,612.28/576,901.68 = 118,399.84/x
  3. Step 3: Cross multiply
    384,612.28x = 576,901.68 × 118,399.84
  4. Step 4: Simplify right side
    384,612.28x = 68,305,066,607.73
  5. Step 5: Solve for x
    x = 68,305,066,607.73/384,612.28
  6. Step 6: Final answer
    x = 177,594.61

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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.