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Finding the Fourth Proportional to 285,365.84, 393,771.11 and 164,546.82

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Solution

The fourth proportional to 285,365.84, 393,771.11 and 164,546.82 is: 227,055.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,365.84 : 393,771.11 = 164,546.82 : x
  2. Step 2: Convert to fraction form
    285,365.84/393,771.11 = 164,546.82/x
  3. Step 3: Cross multiply
    285,365.84x = 393,771.11 × 164,546.82
  4. Step 4: Simplify right side
    285,365.84x = 64,793,783,135.64
  5. Step 5: Solve for x
    x = 64,793,783,135.64/285,365.84
  6. Step 6: Final answer
    x = 227,055.15

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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.