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Finding the Fourth Proportional to 321,783.62, 444,061.46 and 178,544.68

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Solution

The fourth proportional to 321,783.62, 444,061.46 and 178,544.68 is: 246,391.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,783.62 : 444,061.46 = 178,544.68 : x
  2. Step 2: Convert to fraction form
    321,783.62/444,061.46 = 178,544.68/x
  3. Step 3: Cross multiply
    321,783.62x = 444,061.46 × 178,544.68
  4. Step 4: Simplify right side
    321,783.62x = 79,284,810,612.24
  5. Step 5: Solve for x
    x = 79,284,810,612.24/321,783.62
  6. Step 6: Final answer
    x = 246,391.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.