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Finding the Fourth Proportional to 328,052.40, 492,078.60 and 178,364.40

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Solution

The fourth proportional to 328,052.40, 492,078.60 and 178,364.40 is: 267,546.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,052.40 : 492,078.60 = 178,364.40 : x
  2. Step 2: Convert to fraction form
    328,052.40/492,078.60 = 178,364.40/x
  3. Step 3: Cross multiply
    328,052.40x = 492,078.60 × 178,364.40
  4. Step 4: Simplify right side
    328,052.40x = 87,769,304,241.84
  5. Step 5: Solve for x
    x = 87,769,304,241.84/328,052.40
  6. Step 6: Final answer
    x = 267,546.60

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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.